RE: [CAD_CAM_EDM_DRO] OT: Intro + Q:Selecting workshop heater

Biggest thing I like about natural gas is that I don't have to think ahead.
The pipe runs to the house and I let the utility company worry about how to
keep it full and just pay the bill!!.

Tim
[Denver, CO]

> Tim Goldstein wrote:
>
> > I am in the process of relocating my workshop from the basement to the
> > garage. I don't have my heater installed yet, but have already
> gotten the
> > lines put in for a natural gas unit heater. I am planning on
> going with a
> > 45,000 BTU unit. This is just a guess as to the proper size.
> Can anyone help
> > me understand how I would determine the correct size furnace to heat an
> > insulated 2 car garage in Denver, CO?
> >
> > Tim
> > [Denver, CO]
>
> I think that natural gas or propane is the way to go. At
> $1.35/gal though you are getting close to the cost of electricity at
> least in some places.
> Propane is 93000 BTU/gal. so do the figures.
>
> My house... living room, kitchen, etc. is a 17' ceiling with
> 11,000 ft3. volume. R 36 walls and r45 ceiling...and I heat it with
> 13000 BTU propane (93% eff). propane and calcs say 100% point is
> 6 F. In reality it doesn't run all the time at -20.
>
> Shop is R21 or so walls and R35 ceiling and about 600 sq ft.
> Right now I'm using 2.2 Kw to heat it but am planning on going to
> propane. So that looks much like the propane heater for the house
> but it runs only when I am in the shop. I like the idea of
> exhausting the combustion products outside the work area. Also a
> friend of mine burned down his shop by using propane space heaters
> in it. Naturally he is a bit careful about trying them again.
>
> This area is in the range of 5500 degree-days so is equivalent to
> Billings, MT.
>
> If I had my choice I would go natural gas first (methane is
> lighter than air and therefore won't settle and also difuses faster.
> Most places is is about half the cost of propane.
>
> Look at your choices, run the math and then go for it.
>
> Lots of luck,
>
> Dave
>
>
>
>
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