Ok, difficult question, I just ordered the Hot Dawg HD45 45,000 heater for
my garage. It's an oversized two car garage, soon to be dream workshop. I
was planning on using a thermostat to keep the temp around 50 and then
cranking it up when I'm in there. Can somebody tell me how they've done
with fuel consumption? This is a LP type of heater and I'm concerned about
the exorbitant prices of fuel and the nitwits I work with bragging about the
efficiency of their wood burning stoves.
A friend of mine owns the same unit, and uses it in the same manner.
He is conservative and doesn't find the extra bill from cranking up
Around here a therm is about $.90 and 45,000 would use one therm every
2 hours. If the heater ran full tilt for two hours you couldn't stand
to be in the shop.
He keeps his set for just above freezing, but keeping it in the upper
40's for woodworking tools to not condense I think would be wiser. If
the heater is not ALL or nothing, you could dial it down to 5K btu's or
something and that might be more managable as an ongoing heat level.
Guy at work has one. Two car garage, sounds like it's a little smaller than
yours. We're in Wisconsin. Says he uses a couple hundred gallons a year.
Does just like you're planning to. Keeps it at 50 till he needs to use it
then cranks it up. Used to have a woodburner in there. There's no smoke, no
ashes, no condensation, the iron doesn't take forever to warm up, and the
insurance guy is a whole lot happier. He's pretty sure that even with the
initial cost it's only a little more than buying firewood after a couple
years. He'd rather play in the shop than go cut wood.
He was ticked off about spending all that money and not being able to burn
his scraps any more, but now that he's had it awhile he's really glad he
====================================Fuel Consumption...? Just for you info on what mine has been
Live in Western Maryland...not in the frozen North but the temp
outside now as I type is 14...
My shop is only 24x24... BUT is located on the second floor above
one of my garages... so I am heating a 2 story building... Thermostat
is located upstairs in the shop
Insulation is actually not that great...6 .single pane windows in the
building... 2 regular non insulated cardboard thin garage doors with
plenty of daylight visable around the edges...
I am in my second year of heating it .24/7 during the winter ... I
also set the thermostat at 50 and crank it up only when I am down
My funrace is a 116,000 BTU natural gas furnace that my sons picked up
and installed for me...converted it to propane since I do not have
natural gas available...(Picked that size funrace because it was
FREE..brand new never been run ..BUT was installed in error in a new
home that the specs called fror a larger furnace..)
Last year I used 230 gallons of "pro-pain"...so far this year I have
gone thru 125 gallons...and the tank was refilled last week (have not
got the statement yet but it should have taken 100-150 or so gallons
Hope that what I now have will last the rest of the year... (fingers
crossed) . BUT my use seems to indicate that I will be using about
300 gallons of propane a year and at close to 2 bucks a gallon I am
looking at a heating bill of about $600 a year...
That seems high...and is...BUT since I am retired and use the place a
lot ...(usually a few hours every day...I am happy... if the building
was insulated well I know my fuel use would drop big time... just not
worth the bother so far...
I ordered mine online for about $440. The shipping is like $50. I'm not
sure what the final installation will cost since I have swallowed my pride
and decided to have somebody else do the gas installation. There's
something about explosions that I don't like.
were you already on LP service before this? I've been thinking of using the
same system, but wasn't sure what is involved in getting a big tank
installed. My house has an oil-fired boiler, so I'm considering running a
hot water line to the garage and using a convection unit from that. No
combustion at all in the shop seems like a good idea, and then I could have
only one fuel to deal with. I just have no clue as to how efficient that
would be, although my boiler man says it would work just fine - although he
won't dig the trench for the line hehe.
This is a detached garage with nothing. I have oil heat in the house. I
called my oil company and they are taking care of everything for the LP
service. They provide the tank, the hookup, etc for $69. I just have to
pay for the propane.
I just had the installer stop by. Got quoted $2,500 for running the gas
pipe (35'), vent through a brick wall and full installation of the heater
(Hot Dawg 45,000btu). By the way, he said that if _I_ had bought the heater
instead of him/his company, they wouldn't install it due to liability
concerns. Something to think about.
This happens all the time...
BUT I bet you would not have a hard time getting the actual installer
( an employee of the company you got the quote from) to do the work
"on the side" for 1/2 the price (cash) ..after you got the permits
Side jobs are a major source of income for a lot of tradesmen..found
out that a long long time ago...
That sounds a bit steep.... My preliminary quote is $98 an hour for labor
and $15 a foot for the pipe. Considering the price of black pipe at Home
Depot or Lowes, I think I would have done it myself instead of that price.
The vent can be purchased all ready to go online for about $125.
Sounded steep to me too... Have had 4 guys come in now and the range has
been 2100 to 3400. Talked to all of them to get enough information to make
me realize that I'll be able to do this myself and get a contractor to sign
off on it afterwards.
Right now, I've got a 3/4 to 1/2 reducer just inside the house, going to
remove it, run 3/4 all the way to the heater, then reduce to 1/2 so as not
to lose gas pressure/BTUs. According to one guy, given the length of the
run I have/would have and the number of bends, it would reduce the output of
the heater down to about 20k btu (instead of 45K).
Maybe this will be a summer project. ;-)
I recently bought a 60K but unit from these folks:
Bottom line - currently shipping is free, listed prices run from US$450 (30K
BTU) to US$569 (75K BTU)
I don't have LP consumption figures yet.
Standard disclaimers - no affiliation, etc.
Wichita, KS USA
I have the Hot Dawg 75,000 LP heater in my shop. I vented it thru the side
of the shop (gabled area) to prevent any problem leak problems associated
with going thru the roof. The shop is a 28' x 36' x w/14' walls. It has
the normal 2" blanket insulation in the walls and roof area. I live in the
pacific northwest 6 miles from the Canadian border. The occasional
Noreaster out of British Columbia drop the temps into the teens for days at
a time. Normal winter night time temps run in the high 20's to low 30's.
Since I'm retired, I get to use the shop a lot. I set the thermostat at
65deg. for 10-12 hrs during the daytime. If I know it will drop into the
20's during the night, I leave the furnace at 45deg. If it's going to drop
only into the lower 30's, I turn off the heat completely.
I use 90-105 gallons of propane yearly. I have no problems with glue or
finishes freezing. I have zero problems with machined surfaces rusting.
I highly recommend this unit.
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