19x19 8 ft ceiling attached garage insulated walls ceiling and garage doors,had the hawt dog for 13 yrs ,zero issues very happy with it.I think i paid about 400.00 for it.
Been installed in our garage since previous owners built it in 2001. I’ve had to replace the inducer as it was getting really loud and the board which has the fan timer switch integrated into it. $240 in parts and about an hour of my labor. Those are the only issues I’ve had with it.
Mini-split off Amazon. Mr Kool, Innovair, and Pioneer are all good brands and can be DIY installed. They’ll give you plenty of heat, cooling, and evaporative performance, for year-round comfort, at ~$1K.
I have a Big Maxx purchased from Northern Tool in 2017 and it is still working great. The box did arrive a little dinged up but no issues in the 3 years. It is running on a 100 gallon propane tank. Shop is about 24x34 and I have the 80K BTU unit. Walls are insulated but the attic isn't yet (I'm working on that). It heats things up in a hurry. I leave the thermostat at 50 then turn it up if I'll be out there for a while. I don't want things to freeze out there. Only issue I've had with the unit is the tubing to the pressure sensor can get clogged up if you have the unit running while also generating a lot of dust (shouldn't really be doing this anyway). Just have to take the side panel off and clean it out and all is well again. This is the unit I have and I installed everything myself including the vent through the roof: https://www.northerntool.com/shop/tools/product_200577751_200577751
Radiant is awesome, heats objects, not air. we had one in a previous shop, and in zero weather, open overhead doors, switch vehicles, and immediate warm. Bonus, heats the floor, so it`s warm also.
I'm 24 x 30 (I think), 2 story. well insulated, with a way to close off the 2nd floor which is also insulated.....I have one of these and it works great! It'll cook me out of the first floor, and heat both floors when I need it.......I wish it had a fan, but I just screwed a small desk fan behind it, works good. https://www.zoro.com/re-verber-ray-...rsmowdGGYlWb2_V74H4V739D1JWEI81MaAqPkEALw_wcB Window unit A/C downstairs for when I need it.
I have a HotDawg in my garage, guessing 15 years old, hanging from the ceiling. 25x25 insulated/rough drywalled. I think it is 100k BTU (yes, maybe overkill, but the price difference was negligible when I bought the thing-don't even remember what I paid, maybe $600?). Never had any issues, keep it at 40-45 in winter, and crank to 60 when out there. I'm toasty in 5 minutes. Externally vented out side wall, natural gas (gas line to detached garage existed when I bought the house). A little noisy when it kicks in, but all in all, one of my better buys.
Reznor - had mine for several years and it's worked great. 3.5 car garage, heats it up to 68-70 in 10-15 minutes and can keep it there without running constantly (good insulation was part of the project as well).
Questions from a financial perspective... Let's assume an appropriate sized heater for a large 2-car garage, 700sq/ft with R15 walls/10' R15 ceiling. My research shows so 7000W/24K BTU does the job. I'd like to keep the dormant temp mid/low 50ºs and working temps 65º-70º throughout the cold months of central PA. Working time roughly 20 hours/week or less. How much juice do the heating elements in these electric heaters consume? How much juice do the NG/LP heating elements consume? Put those numbers into seasonal costs of operation, including maintenance/upkeep. I'm torn between the convenience of an electric heater and the cost of electricity or gas heaters that seem to be less expensive on fuel but require quite a reserve in the tank, have to have an electrical hookup and I wouldn't get one that didn't vent to the outside. What I really want is one of these ($800-$1000, used/reconditioned), 15' of flue pipe and a ton (~$100-$200) of coal that would last more than a season. No power requirements. Maintenance equates to dumping the ashes and a once a season cleaning. The ashes can be scattered in your garden, across your lawn, on the driveway as a traction improver... What's not to like?
electric heaters are not cost effective for larger areas, or longer term heating, and electricity isnt getting any cheaper. NG, Propane, are cheap, clean, and efficient. coal, wood, sounds cheap/free but, you deal with the ash, soot, and mess. pick your poison. Ski
for you guys on propane...what are you paying per gallon? Here in SW Michigan I am at ~$1.69/gal. They own the tank..no contract though.