Building new Off Grid Home in Panama

mtdoc

Re: Bulding new Off Grid Home in Panama

Just an FYI - HEREs the crimp tool I bought on ebay. It works well.

NorthGuy

Re: Bulding new Off Grid Home in Panama

Photowhit wrote: »

The Xantrex might be a great controller, but it's still an 80 amp controller, so it'll handle about the same number of panels as the Classic 150 or 200. I think someone stated it would handle 2x's...

That was me. When I was looking for a high voltage controller, I looked at Classic 250 and it only could handle 3kW. But you're right, Classic 150 can handle 4.5kW. Don't know why such a difference between 150 and 250. Sorry for the confusion.

Photowhit

Re: Bulding new Off Grid Home in Panama

mtdoc wrote: »

Just an FYI - HEREs the crimp tool I bought on ebay. It works well.

While I think I purchased a good quality crimper, I like that this one applies pressure straight between the 2 plates, and would have preferred this one, indeed, I purchased the one I did since it had a cam of sorts and appeared to apply the pressure straighter than the cheaper ones. I think I paid about $40 shipped for mine and it was advertised every where else at $50+ with shipping. I did a quick search for MC4 Crimper and the only one like the one I purchased runs $63 on EBay shipped. and the crimps they show are on 20+ strand wire!

BB.

Re: Bulding new Off Grid Home in Panama

I believe the higher voltage rated FETs have higher internal resistance/lower maximum current rating. So, higher Vinput rated Midnite MPPT controllers have lower maximum output currents.



Midnite Solar "Classic" MPPT Solar Charge Controllers - Basic Specifications



Model
Classic 150
Classic 200
Classic 250
Classic 250KS


Max Input Voltage
150 Volts DC
200 Volts DC
250 Volts DC
250 Volts DC


Max HyperVOC
150 VDC + Battery Volts
200 VDC + Battery Volts
250 VDC + Battery Volts
250 VDC + Battery Volts


Battery Voltage Range
12 to 93 Volts DC
12 to 93 Volts DC
12 to 93 Volts DC
12 to 150 Volts DC


Max Output Current
96 Amps
79 Amps
63 Amps
40 Amps


See the Solar Classic data sheet for complete specifications



-Bill

Panamretiree

Re: Bulding new Off Grid Home in Panama

mtdoc wrote: »

Just an FYI - HEREs the crimp tool I bought on ebay. It works well.

Checked it out. Looks good. Like having the right tool for the job. Took me a few years but I finally got a good RG-6 cable connector tools instead of doing it manually. On my list.

Cheers

Ernest

Panamretiree

Re: Bulding new Off Grid Home in Panama

I've looked at the specs for the XW and Classic controllers. The Classic 150 as you know will do 2.4 kW at 24VDC and 4.5 kW at 48VDC.

With my proposed panels, Helios 7T2 305W, I can put 3 panels in series and have 4 strings max. This gives me an array size of 3660W, short of the 4.5 kW max, but this is based on a combination of Voc and Vmp. What this tells me is that maybe I should be looking for a different size panel, smaller wattage, that would allow me to get closer to the maximum wattage that the Classic 150 will handle.

Another reason why I have tended to gravitate towards the Classic 150 is that it seems to be becoming the industry standard from which everything is compared to. Branding is also another issue that the Classic conjures up. branding a product is a multi-million if not more industry and getting the brand correct can mean the difference between boomer bust. I have looked at the various system configurations and there appears to be a lot of Classics mentioned, and when looking at posts regarding upgrades and/or new systems, the Classic seems to pop up a lot.

I am always looking at possible alternatives and figured I'd give the XW lineup a look. The XW60-150 is a good controller from what I read, but does not have all the bells and whistles of the Classic. It integrates with the XW system and probably makes for a more seamless install and operation. It has a PV array voltage of 140V with a max of 150V, and a n array size of 3.5 kW.

The XW80-600 was an interesting read and got me to thinking about having a single controller to handle all the panels that I want to install, but it still has a 4.8 kW limit. It does allow for no combiner box, but that is not a huge issue, and it is an 80A CC; however, the Classic 150 can go up to 96A. Once again it integrates into the XW system as well.

Looking at these options, it would appear that the Classic 150 and the XW80-600 are close in capabilities, and with the right panel size and configuration, both do the same job. To caveat this, I would have to say that you can probably fine tune the Classic more than the XW80-600 - my opinion from what I have read.

The new battery monitor coming from MidNite Solar for the Classic is an excellent add-on feature, but what I'd like to see is a current diverter that would monitor battery bank SOC and divert power to the battery bank when needed than to house loads. I would expect it to be programmable such that you could maintain and cycle your batteries within certain parameters as well. This would maximize the efficiency of the system. I did read a blog pertaining to this, should have bookmarked it.

Having stated the above, I will probably stay with the Classic 150 as I initially intended. There is also a cost aspect that cannot be discounted.

Will be looking at the panels now to determine what can be done, and what is most cost effective.

The more I rationalize and organize my thoughts, the better I understand what I have read and possibly need. The different posts also get me thinking as well, and I always consider what I have read in my deliberations.

Just my $0.02 worth.

Cheers

Ernest

vtmaps

Re: Bulding new Off Grid Home in Panama

Panamretiree wrote: »

what I'd like to see is a current diverter that would monitor battery bank SOC and divert power to the battery bank when needed than to house loads.

Huh? So when a cloud passes by you expect your controller to shut off the house loads in favor of charging the battery? The usual way of charging the batteries when there is insufficient solar is to run the generator.

If you are talking about shutting off opportunity loads (rather than general house loads), the Classic is a very good choice with a lot of flexibility.

--vtMaps

westbranch

Re: Bulding new Off Grid Home in Panama

I don't remember where it came up but there is a consensus that you should NOT plan to max out your CC loading.
My own thoughts are to keep the planned STC load below 80% of the max CC rating so as not to overheat the CC inerds.. or cause the CC to go Hyper V and shut down.

YMMV

westbranch

Re: Bulding new Off Grid Home in Panama

re: batteries, got this link this morning, for their new tech battery , dont know if you will have access i Panama
http://www.usbattery.com/usb_solar_p1.html?utm_source=General_5%2F3013a&utm_campaign=6e4305b770-USB_Sponsors_Dorado_Fishing_Tournament5_15_2013&utm_medium=email&utm_term=0_0985d51428-6e4305b770-67971289

Panamretiree

Re: Bulding new Off Grid Home in Panama

westbranch wrote: »

re: batteries, got this link this morning, for their new tech battery , dont know if you will have access i Panama
http://www.usbattery.com/usb_solar_p1.html?utm_source=General_5%2F3013a&utm_campaign=6e4305b770-USB_Sponsors_Dorado_Fishing_Tournament5_15_2013&utm_medium=email&utm_term=0_0985d51428-6e4305b770-67971289

These batteries are available through battery giant here in panama city. Had already looked at the 2V variety. Need another quote.

Cheers

Ernest

Panamretiree

Re: Bulding new Off Grid Home in Panama

Have been looking for a generator as part of our solar power system. Have found a Hyundai DHY6000SE diesel generator locally on sale for $1500.00. Have looked at the specs and it seems to be a good little unit. Can be wired for auto start, preheat is not a requirement down here.

Specs are:

Hyundai DHY6000SE Silenced 5kw Diesel Generator with AVR

Ideal for a home standby generator and is also very popular in the
construction industry and with farmers and horse owners.

Powered by the Hyundai 420cc air-cooled diesel engine and fully enclosed
in a sturdy sound proof enclosure, the noise level is only 70db @ 7m.

FEATURES:

· Powered by Hyundai 10hp, 4-stroke, OHV air cooled direct injection diesel engine.
· NEW - Pre-heat button
· Large Tank with fuel gauge providing long running hours.
· Fully enclosed for better protection and noise reduction.
· NEW - Emergency Stop button.
· AVR for smooth voltage output - ideal for powering PCs and sensitive electronic equipment
· Super Silent Canopy
· Oil Alert system with automatic engine shut-off.
· Control panel including ; 2 sockets- 230v and 115v, DC ouput 12v, Circuit breaker, Digital Voltmeter, Hourmeter and Frequency meter.
Specifications:

Maximum power output: 5000w
Continuous output: 4500w
Voltages: 12v DC, 115v AC, 230v AC.
Frequency: 50hz
Engine: Hyundai 418cc, air-cooled OHV, diesel.
Maximum Power: 10hp
Engine RPM: 3000rpm
Alternator type: Hyundai AVR
Digital overload protection
Fuel consumption: 0.75 to 2 litres an hour depending on load
Fuel tank size: 16 litres
Weight 175kg
Dimensions: 920 x 550 x 750

Picture and Manual:

Attachment not found.Attachment not found.

A good gas generator is up in price as well.

Comments? Going back tomorrow to have a better, closer look.

Cheers

Ernest

Blackcherry04

Re: Bulding new Off Grid Home in Panama

Can it be switched to 240 split phase @ 60 hz ?? 230 @ 50 hz is just 2 wire.

Panamretiree

Re: Bulding new Off Grid Home in Panama

Blackcherry04 wrote: »

Can it be switched to 240 split phase @ 60 hz ?? 230 @ 50 hz is just 2 wire.

The units that I can find on line are all from the UK, but the info is good. The unit here is 240 split phase because of the US system of power generation. Will be confirming tomorrow.

Cheers

Ernest

Panamretiree

Re: Bulding new Off Grid Home in Panama

Looked at the generator again today, it is 120/240VAC, the Mrs liked the price and we bought it. Having it delivered Monday, have a truck at my disposal. Looking forward to getting it and trying it out. Will be doing more digging on the web for additional specs for the unit. I think I found one that stated the change in frequency over the power range.

Cheers

Ernest

inetdog

Re: Bulding new Off Grid Home in Panama

Panamretiree wrote: »

Looked at the generator again today, it is 120/240VAC, the Mrs liked the price and we bought it. Having it delivered Monday, have a truck at my disposal. Looking forward to getting it and trying it out. Will be doing more digging on the web for additional specs for the unit. I think I found one that stated the change in frequency over the power range.

The one spec that I would want to see for sure in your situation is how many engine running hours are covered by the warranty and how many hours before major servicing. Those numbers will confirm that it is suitable for use as a "prime mover" with regular operation of several to 24 hours per day, rather than a "standby and portable" unit not intended to be used a lot for a long time.

(Here in California, the Air Quality Folks have some strict emission controls on generators as well as yard and construction equipment.
The difference in price between a generator with a 100 hour emissions warranty and a 300 hour warranty is large!
If you choose to follow CA law to the letter, then after the emissions warranty runs out you either get a factory rebuild if the manufacturer offers it or you sell the unit to someone out of state or you scrap it. There is no testing program to see whether it still meets the legal limits.)

Panamretiree

Re: Bulding new Off Grid Home in Panama

inetdog wrote: »

The one spec that I would want to see for sure in your situation is how many engine running hours are covered by the warranty and how many hours before major servicing. Those numbers will confirm that it is suitable for use as a "prime mover" with regular operation of several to 24 hours per day, rather than a "standby and portable" unit not intended to be used a lot for a long time. Will look into this.

(Here in California, the Air Quality Folks have some strict emission controls on generators as well as yard and construction equipment.
The difference in price between a generator with a 100 hour emissions warranty and a 300 hour warranty is large!
If you choose to follow CA law to the letter, then after the emissions warranty runs out you either get a factory rebuild if the manufacturer offers it or you sell the unit to someone out of state or you scrap it. There is no testing program to see whether it still meets the legal limits.)No issues here with emmissions.

Will browse the web to get more information. I have found that items are sold here, but very few people are knowledgeable about the product, or where to get additional information. Every day here is a new adventure in sourcing and gathering information.

Cheers

Ernest

Panamretiree

Re: Bulding new Off Grid Home in Panama

Having the generator "bunker" built. Will be cinder block construction, 6" foundation w/rebar, inner/outer walls parged, outer walls waterproofed. Three sides will be filled in and landscaped (blending it into the terrain). The roof will be covered as well. Only one wall to soundproof, and it is facing away from the house. Two conduits will be buried and run to the workshop. It will be 2 meters by 2 meters (inside dimension) and ~5' high.

Been thinking of soundproofing and using ceiling tiles spaced 1/2 inch or so off the walls. Read up on this for houses and basements a while ago and this is a typical type of installation (different materials).

Will take location pictures tonight.

Cheers

Ernest

westbranch

Re: Bulding new Off Grid Home in Panama

those nice wheels will make wheeling that 175 Kg machine AWAY, a snap!:grr

What measures have you in mind for anti theft?

Panamretiree

Re: Bulding new Off Grid Home in Panama

westbranch wrote: »

those nice wheels will make wheeling that 175 Kg machine AWAY, a snap!:grr

What measures have you in mind for anti theft?

I hear you! Will be having a look at the unit this week and see what can be done to make it as secure as possible. The bunker will also be located just about out of sight and mind, but news always travels. The terrain where it is is not the best either. A couple of eye bolts secured in the concrete pad would be good. The door will be steel (custom made because of height) and have a couple of deadbolt locks - one is good, two is better.

Cheers

Ernest

stephendv

Re: Bulding new Off Grid Home in Panama

Panamretiree wrote: »

Having the generator "bunker" built. Will be cinder block construction, 6" foundation w/rebar, inner/outer walls parged, outer walls waterproofed. Three sides will be filled in and landscaped (blending it into the terrain). The roof will be covered as well. Only one wall to soundproof, and it is facing away from the house.

I did the same, 1.5 meter underground and the rest covered with the soil that was removed. Have all the power generation kit in there and it does wonders for the temperature. Current ambient temperature is 30C, but my battery are at 22C thanks to the bunker
Only problems I've had with it was an undersized french drain system, so it flooded during heavy downpours. Sorted it out with a small 12v bilge pump. Some pics here:
http://www.casanogaldelasbrujas.com/blog/2009/03/26/shed-walls-and-water-proofing/
http://www.casanogaldelasbrujas.com/blog/2009/04/09/concrete-forms-encofrado-and-roof/
http://www.casanogaldelasbrujas.com/blog/2009/05/17/generator-exhaust-expansion-chamber/

When the old 1500rpm single cylinder diesel was running, you could only hear it on the exhaust side of the bunker. Just 5m on the other side was almost complete silence. Although I don't think you'll have as much of an issue with noise with the Hyundai gen, because it's a higher pitched whine and not so much a thump thump thump.
Speaking of which, I think that Unicornio (a member on this forum) has that exact generator. It's a common chinese clone design so spare parts should be easily available. AFAIK, the only problem he's had with it was a faulty AVR which was discussed on this forum.

unicornio

Re: Bulding new Off Grid Home in Panama

yeah, I have a genset hyundai very similar to this, only mine has the electric box something different and is only for 230acv.

the truth is that it works (as of today) but do not bet a buck for it,... that has given me many problems,... I had to cancel the meter, all the electric panel and automatic starting circuit and connect directly to an external controller (DeepSea 3110) that I have thanks to Stephen.

has leaks of oil and fuel since new, and I could not solve it, I've had to put under it some trays like the bilge of boats...the problem of avr citing Stephen only was the last ...the good part is that this market with so many brands, so it is very common and is very easy to find any spare parts, which are chinese and therefore are not very expensive (avr= 50€)

I have no desire (or have not extra money) to get rid of him, and after all the time I've spent and so much problems I've solved, i learn a lot about and now would say that I have it under control and I can continue keeping it and repairing it.

meanwhile, if someone said me all problems and breakdowns, I certainly would not have bought, and therefore I can not recommend anyone to buy it ...
but is a very cheap genset option (near 1000€), and cheap is expensive...;-)

Panamretiree

Re: Bulding new Off Grid Home in Panama

unicornio wrote: »

yeah, I have a genset hyundai very similar to this, only mine has the electric box something different and is only for 230acv.

the truth is that it works (as of today) but do not bet a buck for it,... that has given me many problems,... I had to cancel the meter, all the electric panel and automatic starting circuit and connect directly to an external controller (DeepSea 3110) that I have thanks to Stephen.

has leaks of oil and fuel since new, and I could not solve it, I've had to put under it some trays like the bilge of boats...the problem of avr citing Stephen only was the last ...the good part is that this market with so many brands, so it is very common and is very easy to find any spare parts, which are chinese and therefore are not very expensive (avr= 50€)

I have no desire (or have not extra money) to get rid of him, and after all the time I've spent and so much problems I've solved, i learn a lot about and now would say that I have it under control and I can continue keeping it and repairing it.

meanwhile, if someone said me all problems and breakdowns, I certainly would not have bought, and therefore I can not recommend anyone to buy it ...
but is a very cheap genset option (near 1000€), and cheap is expensive...;-)

Thanks for the info. Will be starting it tomorrow. Took all the panels off that I could so I can monitor it on startup. Will let you know what I come up with. Sorry you had such a bad experience with it. I'm hoping mine was made mid-week and not Monday or Friday. You can get a bad one no matter what brand, and I can hear the chorus now - "Not with a Honda!".

Cheers

Ernest

unicornio

Re: Bulding new Off Grid Home in Panama

Panamretiree wrote: »

Thanks for the info. Will be starting it tomorrow. Took all the panels off that I could so I can monitor it on startup. Will let you know what I come up with. Sorry you had such a bad experience with it. I'm hoping mine was made mid-week and not Monday or Friday. You can get a bad one no matter what brand, and I can hear the chorus now - "Not with a Honda!".

is a very good design, and I think the first manufacturer that has been in was kypor. I recommend you have it running a couple of hours and you check the tightness of all screws. also check the oil filter after the first few hours, mine was full of metal shavings and metal chips. would be very good idea to put a neodymium magnet stuck on the two oil dipstick ... it would also be advisable to throw that first oil, and put a new one, especially if it comes from the factory, it is doubtful whether it is of good quality diesel oil...

for the rest, and by positive, I have to tell you that the genset is very well designed, in the sense that everything can be removed without any problem, the engine is a copy of a widely used engine from very good japanese manufacturer named yanmar, so you can get any info for service and repair. is a simple and cheap diesel machine, very easy to repair and replacement parts are available for little money ...

as you very well say, no matter the brand or manufacturer, being perhaps more important that the operator who has mounted was not a piggy ...
I wish you the best! ... ;-)

Panamretiree

Re: Bulding new Off Grid Home in Panama

unicornio wrote: »

is a very good design, and I think the first manufacturer that has been in was kypor. I recommend you have it running a couple of hours and you check the tightness of all screws. also check the oil filter after the first few hours, mine was full of metal shavings and metal chips. would be very good idea to put a neodymium magnet stuck on the two oil dipstick ... it would also be advisable to throw that first oil, and put a new one, especially if it comes from the factory, it is doubtful whether it is of good quality diesel oil...

for the rest, and by positive, I have to tell you that the genset is very well designed, in the sense that everything can be removed without any problem, the engine is a copy of a widely used engine from very good japanese manufacturer named yanmar, so you can get any info for service and repair. is a simple and cheap diesel machine, very easy to repair and replacement parts are available for little money ...

as you very well say, no matter the brand or manufacturer, being perhaps more important that the operator who has mounted was not a piggy ...
I wish you the best! ... ;-)

Good recommendation to run for a couple of hours then change the oil and filter, and I will be checking for leaks, etc. Have to locate a replacement filter. The engine came dry so I added the oil, Castrol 10W40.

Sometimes these engine clones are exact duplicates minus some of the more proprietary items. Same as oils, tires, car batteries, etc. Went to a Petrocan refinery in Ontario Canada once and it produced oil for Shell, Esso, Texaco, etc, and the oil base was the same, the additives were different.

Cheers

Ernest

Panamretiree

Re: Bulding new Off Grid Home in Panama

westbranch wrote: »

those nice wheels will make wheeling that 175 Kg machine AWAY, a snap!:grr

What measures have you in mind for anti theft?

Further to my last, I was thinking once the gen shed is completed, look at the placement of the genset and chop out some concrete, install eye bolts and use a good bicycle cable that resists master keys.

Cheers

Ernest

unicornio

Re: Bulding new Off Grid Home in Panama

Panamretiree wrote: »

Good recommendation to run for a couple of hours then change the oil and filter, and I will be checking for leaks, etc. Have to locate a replacement filter. The engine came dry so I added the oil, Castrol 10W40.

the oil filter is only a thin metal mesh, so you only have to clean it with some gasoline or disolvent ... i thing that you no need to change it unless it breaks ...

if you get it dry, perfect, put good oil, but it is still advisable to change it after a couple of hours ... put attention to test the tightening cylinder head bolt ... to many operations it is preferable to completely remove the "top" of soundproofing chassis,...there are very many screws but worth it for you because the small covers are insufficient to access to many items ...

really is something that should not be normal, we need to agree... having to disassemble a genset the first day after buying it, but when you buy cheap stuff, if we want it to work fine, we must invest in time that we have saved in the buy ... hehehehe

this yanmar engines have very good reputation on marine small boats market, but in this case the engine operates at approximately 1000 rpm, whereas at the genset will operate at 3000 rpm (or 3600 rpm if 60Hz), so that the machinery will be forcing too much, besides making really a unbearable noise ...

Panamretiree

Re: Bulding new Off Grid Home in Panama

unicornio wrote: »

the oil filter is only a thin metal mesh, so you only have to clean it with some gasoline or disolvent ... i thing that you no need to change it unless it breaks ...

if you get it dry, perfect, put good oil, but it is still advisable to change it after a couple of hours ... put attention to test the tightening cylinder head bolt ... to many operations it is preferable to completely remove the "top" of soundproofing chassis,...there are very many screws but worth it for you because the small covers are insufficient to access to many items ...

really is something that should not be normal, we need to agree... having to disassemble a genset the first day after buying it, but when you buy cheap stuff, if we want it to work fine, we must invest in time that we have saved in the buy ... hehehehe

this yanmar engines have very good reputation on marine small boats market, but in this case the engine operates at approximately 1000 rpm, whereas at the genset will operate at 3000 rpm (or 3600 rpm if 60Hz), so that the machinery will be forcing too much, besides making really a unbearable noise ...

Started it this afternoon, took a few tries to get the air out of the lines, but once the air was out ran well. There is quite the noticeable difference in sound when all the panels are on. Had the one where the air filter is off as well as the side piece and one on top. Ran at 244V and 61/62 HZ. Took down the manufacturers data from the tally plate and it has a date of 09 Apr 13.

Will be quite quiet once installed in its pen. When it shuts down gives a bit of a kick as well.

I will take the shroud off after a few hours and give the bolts a tweak. I know it is less expensive than some models, but I do not call $1600.00 US cheap, inexpensive yes, but not cheap. you are correct in that we must be diligent in our maintenance to keep this inexpensive equipment working for the long haul.

Cheers

Ernest

unicornio

Re: Bulding new Off Grid Home in Panama

Panamretiree wrote: »

I know it is less expensive than some models, but I do not call $1600.00 US cheap, inexpensive yes, but not cheap. you are correct in that we must be diligent in our maintenance to keep this inexpensive equipment working for the long haul.

when I started my life off-grid, I look for a 5-6 kva diesel genset, and there was not much to choose from, almost all manufacturers had models from 10kva diesel, so I had to settle for one (honda 5kva) with petrol. I had to spend about 2500 €...

I think that diesel generators under 10kva are relatively modern ...but for now, a good 5kva diesel generator with automatic start, of a prestige manufacturer, exceeds € 6,000...this is not expensive, is reality...and then, the genset can runs for a long time and without problems...

when this gensets came to market, i will to try one, and handle in time for me to get out cheaper (until complete orders to bring a full maritime container). cost me about 900 €, I could not wait to be like a good one ...;-)

this is mine, i have it from june, 2009, i can send you some info and engine service manuals...
Attachment not found.

Panamretiree

Re: Bulding new Off Grid Home in Panama

unicornio wrote: »

when I started my life off-grid, I look for a 5-6 kva diesel genset, and there was not much to choose from, almost all manufacturers had models from 10kva diesel, so I had to settle for one (honda 5kva) with petrol. I had to spend about 2500 €...

I think that diesel generators under 10kva are relatively modern ...but for now, a good 5kva diesel generator with automatic start, of a prestige manufacturer, exceeds € 6,000...this is not expensive, is reality...and then, the genset can runs for a long time and without problems...

when this gensets came to market, i will to try one, and handle in time for me to get out cheaper (until complete orders to bring a full maritime container). cost me about 900 €, I could not wait to be like a good one ...;-)

this is mine, i have it from june, 2009, i can send you some info and engine service manuals...

I will take some pictures of mine and post. The power panel is different, but other than that, from an outside perspective it is the same.

Would appreciate the engine service manual and other info you have. I am looking for a second one as well, smaller, around the 3.5 kW versions. It will take me a while to source one here, but I will find one. I also think that I could sell this one if I found a more robust type with a better pedigree.

Cheers

Ernest

unicornio

Re: Bulding new Off Grid Home in Panama

a peculiarity that has this design is that it is very easy to install in the inside, because for the same side expels exhaust gases and hot air from the cooling, and has a well-studied thermodynamics.

Panamretiree wrote: »

Would appreciate the engine service manual and other info you have. I am looking for a second one as well, smaller, around the 3.5 kW versions. It will take me a while to source one here, but I will find one. I also think that I could sell this one if I found a more robust type with a better pedigree.

send me a pm with your email, and i will send you all info.
but if you want other more robust, here are a true yanmar thats run to 1500rpm:
http://www.generatorsales.com/order/yanmar_4kw.asp?page=yanmar_4kw