Wood or pellet boiler recommendation

Howdy,

Do you have access to unlimited cord wood at no cost? (except your time of course) If you have to buy your fuel either way then pellets start to look pretty good as they will require less of your time but will cost more than cut/spit/delivered.

How many gallons of oil do you burn to keep your house comfortable?

I live on 70+ acres of mostly hardwood so my decision was made for me. My local fuel has a lot less potential cost fluctuations than pellets and I am all about my gasser+storage.

Now going back to the starting point, are there any efficiency upgrades your house has been needing? If so this is the first place spend your money.

Then comes a heat loss calculation unless you trust your oil boiler was sized correctly(not likely). Then you can really compare your options and costs for different fuels.

Good luck with the decision,

Noah

I have a Harman HF60 and have been pretty happy with it. The other issue to consider is your chimney access. The low cost direct vent was part of my HF60 decision. Depending on your existing Oil Boiler type and it's access, and condition, you might find a Pellergy Pellet Burner Conversion to be a reasonable option for you. Good Luck and hope you share your learning with the forum.

VT_Bubba

What is your heatloss? This is a good place to start.

TS

After running a Windhager pellet boiler last winter I can say one of those would be as reliable as your oil boiler. You just put in the pellets every 3 days or so and let it do its thing. You can also use is as self feeding if you have space for bulk storage of pellets.
Cleans itself every day, compacts the ashes into an onboard container, requires manual cleaning about every 1000 hours of operation and you'll never have any smoke issues with neighbors. Very robust construction and good design without a lot of extra fancy combustion controls. I saw consistent efficiency numbers (85-87%) that would rival the best oil boilers on the market.

With a pellet boiler, a good size hopper and good quality pellets you will probably attend to your system once a week at most. I figure you're using the equivalent of about 7-8 tons of pellets per year. That works out to an average of about 2½ to 3 bags of pellets per day during the month of January. If you were to get 1,000 lbs of pellet storage capacity you should be set with more than a week of pellets even for the coldest week of the year.

It would be worthwhile to switch to something other than a domestic coil if you're referring to a tankless coil for your hot water. Those coils require high temperatures to be maintained in the boiler, which translates to wasted energy and loss of efficiency. You would be better off with a standard indirect hot water heater, or a "solar" indirect hot water heater. The solar designation usually refers to an electric element in the tank that you can use to heat your hot water in the summertime. That makes it possible to shut down your boiler when you only have a need for domestic hot water. Of course, you don't need one of the two-coil tanks if you don't have solar hot water panels.