# Thermopex Pipe or Insulated Pipe

### Re: Thermopex Pipe or Insulated Pipe

shy0302 wrote:the furnace that is the house has is 135000 BTU it does a good job of heating in the winter.

All that tells us is that the heating load is not greater than 135,000 btus/hr. It could easily be half that, but without fuel consumption data or an hour meter on the burner it is impossible to estimate.

Does this house have a boiler & radiators or a hot air furnace?
Rob R.

Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

### Re: Thermopex Pipe or Insulated Pipe

when burning oil only the use is 1000 gal a year for heating the house in the winter , hot water is electric.
shy0302

### Re: Thermopex Pipe or Insulated Pipe

So, 1000 gallons and about 6000 degree days at his location. That's .16 gallons per degree day .16 x 140,000 Btu's/ gallon=22,400 BTU's per degree day. Really cold day about 40 degree days per 24 hr period 22,400 x 40=896,000 BTU's divided by 24 hr=37,333 BTU's per hour. Hmmmm??? Somebody check my math.
Carbon12

Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

### Re: Thermopex Pipe or Insulated Pipe

Redid the calculation using historical max heating degree days of 60. Comes out to around 57,000 BTU's/hour.
Carbon12

Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

### Re: Thermopex Pipe or Insulated Pipe

What's the size of the house where the boiler resides? How much coal do you burn for heat each season in that house?
Carbon12

Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

### Re: Thermopex Pipe or Insulated Pipe

Carbon12 wrote:What's the size of the house where the boiler resides? How much coal do you burn for heat each season in that house?

heating two houses

I would not hesitate to hook two 2000 sq. ft houses with moderate heat loss up to an EFM 700, but I have been accused of being a radical before.

Carbon12 wrote:So, 1000 gallons and about 6000 degree days at his location. That's .16 gallons per degree day .16 x 140,000 Btu's/ gallon=22,400 BTU's per degree day. Really cold day about 40 degree days per 24 hr period 22,400 x 40=896,000 BTU's divided by 24 hr=37,333 BTU's per hour. Hmmmm??? Somebody check my math.

You are assuming 100% efficiency of the oil unit.
Rob R.

Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

### Re: Thermopex Pipe or Insulated Pipe

Yes, I assumed 100% efficiency. Was striving for a ballpark,....large ballpark,....figure.
Carbon12

Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

### Re: Thermopex Pipe or Insulated Pipe

Unless the house where the boiler is located is huge and poorly insulated, that boiler "probably" could heat both "most" of the time.
Carbon12

Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

### Re: Thermopex Pipe or Insulated Pipe

the stoker is a 700 or a 900, when I bought it it was advertised as a 520 but after asking questions on this forum I was told to look at the blower and it said S30 so it should be 700 or 900.
shy0302

### Re: Thermopex Pipe or Insulated Pipe

Carbon12 wrote:What's the size of the house where the boiler resides? How much coal do you burn for heat each season in that house?

have not hooked up the coal stoker yet but it is a 700efm and the first house I will be heating this year is the house that uses 1000 gal a year. all windows thermo new doors and insulated. I am heating with oil and a pellet stove in the living room and use three to four tons of pellets per year. the 1000 gal avg was per year before the pellet stove. want to go to coal to heat the hole house.
shy0302

### Re: Thermopex Pipe or Insulated Pipe

Assuming similar efficiencies between oil furnace and coal boiler, you're looking at a little ove 5 tons of coal to heat the house. Domestic hot water production would add to the amount of coal you'll need. The coal is going to be WAY cheaper than the oil!!!
Carbon12

Stoker Coal Boiler: Keystoker KA-6
Coal Size/Type: Rice/Anthracite
Other Heating: Heat Pump/Forced Hot Air Oil Furnace

### Re: Thermopex Pipe or Insulated Pipe

shy0302 wrote:
Carbon12 wrote:What's the size of the house where the boiler resides? How much coal do you burn for heat each season in that house?

have not hooked up the coal stoker yet but it is a 700efm and the first house I will be heating this year is the house that uses 1000 gal a year. all windows thermo new doors and insulated. I am heating with oil and a pellet stove in the living room and use three to four tons of pellets per year. the 1000 gal avg was per year before the pellet stove. want to go to coal to heat the hole house.

1000 gallons per year...your home won't even make that 700 flinch.
Rob R.

Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy