Hello WKB,
I would take a good look at a couple of these options, particularly the Windhager. http://www.hydro-to-heat-convertor.com/pelletboilers.html . They should be fairly close to you(Billerica).
Search Windhager here for more info.
Do you know your heat load(btu's per hour at design temp) and what is your current heat distribution system?
Good luck,
Noah
Get in touch with Milne Plumbing from Manchester. I know Scott Milne personally and you'll get an excellent installation plus a fair deal. He's one of the original "Wetheads" from Dan Holohan's Heating Help website.
Tell him Steve from Michigan sent you his way.
http://www.milneplumbingandheating.com/
I also agree 110% on the Windhager BioWin. I could not be more pleased with the performance of this product.
May take a look at smokeless heat I think they are an exellent dealer, they will ship it to you with complete intructions and customer support. A local plumber can easily install. (broken link removed)
I know of no agency that rates any solid fuel appliances for reliability or performance such as Consumer Reports etc.......maybe I ought to start something like that........
The best I can tell you is from personal experience, which is often more accurate and useful anyway.
The Windhager boilers we have installed and in operation have been rock solid reliable. There were no problems reported or observed with any of them. I think the one with the highest run time on it had over 1700 hours of burn time on it. Unlike a pellet stove or a lot of other pellet boilers, they are designed from the ground up to be THE primary heat source for a home or business. Maybe a better way to say it would be that the intended use is that they are the ONLY heat source.There are over 45,000 BioWins installed and in use worldwide so it is a proven product to say the least.
Performance of these boilers in field use has been excellent. Maintenance is next to nothing compared to what we typically think of when considering pellet burning equipment. I won't get into the mechanisms involved here but the cleaning interval is roughly 1 time for 800-1000 hours of operation. I burned 3.2 tons of pellets through the one in my house and collected the equivalent of maybe a couple 3# coffee cans of ash from it after that use. One owner who burned a little over 7 tons (in a 6,400 sq ft building) cleaned his twice.
Efficiency has been a pleasant surprise to say the least. The numbers I got from combustion testing were the same at start up as they were with 1000 hours of operation. The picture attached here shows the read out on my combustion analyzer for the BioWin260 I have in my house at the end of the heating season. They are easily equal to a normal gas or oil fired boiler. Any technician would be happy to see this level of efficiency if he were looking at an iron or steel gas boiler.
If I were Consumer Reports I would give the Windhager 5 stars for Value, Performance and Reliability.
Other pellet boilers I have worked on have demanded much more "user interaction" than the Windhager did. Mainly in the cleaning and maintenance area. Cleaning was needed every week or two in order to keep efficiency up and keep the unit running reliably. There are others on the market that perform in the same league as the Windhager but the $$ involved are significantly more. Froling is equal to the Windhager in the maintenance free department and is an excellent boiler but more costly. Harman is at the other end of the scale on price and performance for not a lot less money.
I found that in my drafty old house I needed to fill the pellet hopper about every 3-4 days depending on the weather. Sometimes it would need 3 bags to fill, sometimes 5-6. It heated my entire house + all of our domestic hot water. When I calculated the actual fuel cost it came out to about 10% less than natural gas in our area. (which is very cheap right now at $.78/therm delivered)
I just started to install the Windhagar BioWin 260. Had to hall the Woodpecker to scrap yard first. Then get it in building and off pallet. Second day hook up supply and return and start wiring. I have a couple hours doing wiring and the vent hook up yet. Then i am going to build the pellet bin. Then Marc is coming to lite it. I have picture but could not get it to work. Let me know how. Foamit Up
DB Cooper?
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