Hey guys, I have been getting TONS of customers asking about alt fuel heating systems lately. I just had a customer come out to my home since I use my house like a model home {don't ask how my wife likes that}, and check out my central coal fired system. They signed a proposal for 3 coal systems to be installed.
This is getting more and more popular, my house has Propane primary {prestige solo 399 boiler}, Oil backup {Buderus G125be}, Electric supplemental {3-armstrong 18seer heat pumps} works down to 38 degrees, and coal alternative auxilliary {twin burner coal furnace}. My system works pretty simple for being so complicated, Prestige t-stats control almost everything, when its 45-65 degrees out I use the heat pumps, then below 45 the heatpumps stop and the propane kicks in, if the propane ever runs out the oil kicks in, all of which operate as slaves to the coal system, so if the coal system is running all other systems are stalled until the heat exchanger temp drops below 80 degrees, then it will revert to which ever system applies... None of the above system runs my DHW {domestic hot water}, that system consists of a Rinnai ru98i for the winter months and an AO smith heatpump for the summer... Geothermal is the next project, its 70% done since I started revising it, someday I will be done with it....
Anyway my system is way out of the norm, if I had to install all of that for a customer it would easily be $150,000, and it still costs me $1200 or so a year to heat my home{more savings when I use more coal and less propane}, but we keep it warm...
So anyway, does anyone else use coal or wood of any sort?