Espar type heater to replace older furnace.
I was just wondering if anyone has chaged out there propane furnace for a diesel type. I am thinking of doing this as my propane furnce is getting old, uses a lot of propane, uses a lot of power, is ...
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noteven wrote:
StirCrazy - 17000 btu/hr = 4.98 kw /hr.
RV furnaces are probably 80% efficient.
“Diesel heaters” are probably 90% or better...
Diesel fuel has approx twice the power density of liquid propane. Winter diesel is 20% less than summer diesel.
I.e 1kg or 1 litre of diesel fuel has 2x the heating energy as 1kg or 1 litre of LPG.
And yes electricity use is way less per hour...
I would place the old direct vent furnaces at around 60% when new, probably less now. mine is a 12K input 10K output but I think thoes are test conditions, also says it is only 1.6 amps but I measure 3ish
a 3Kw unit would give me roughtly the same max ouputbut at around 0C my furnace was cycling on and off every 2 min, so I imagin if it was colder it would run full blast .
if I can find a 4Kw model it will have a rank from 3070 Btu on low to 13648 Btu on high, for a 5Kw unit it would rng from 5459 Btu on low to 17060 Btu on high.
so now I have to try figure out which unit will stay running on low most of the time with out shutting off and turning on as thats where they use the most power on the ignition phase, but wont roast me out in the late spring and early fall, but still provide enough heat for that once and a blue moon I would go caming in the winter.
I think a 4Kw model is the front runner right now, 3000Btu more than my curent heater but able to drop pretty low
Steve
