Frank, your are correct. Every situation is different, but if you don't continuously heat you will likely get condensation on your tools.
Frank, your are correct. Every situation is different, but if you don't continuously heat you will likely get condensation on your tools.
You may very well be fine with the better quality MiniSplit, then and they are super efficient energy use wise. You'll get both heat and AC/humidity control with one system. Initial cost can be a little higher, but the thrifty use of power can make up for it in reasonable time, IMHO. Mine has barely affected our electric bill...I keep it at a constant 64ºF all winter long and have it on AC at 76ºF for most of the summer. 750 sq ft or so with decent insulation.
Last edited by Jim Becker; 11-27-2020 at 1:53 PM.
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The most expensive tool is the one you buy "cheaply" and often...
Should you go with a mini-split you will be looking at the units with the -20*f capability. The typical models sold in your area, in most areas actually, are rated down to -5*f. An advantage of the mini-split is that you get excellent de-humidification. In your area you need the dehumidification more than you need temperature reduction.
A cabinet shop near me uses a wood fired boiler to drive in floor radiant heating. It’s a good outlet for their scraps, but their main fuel comes from local tree services. I’m really impressed with in floor radiant. once you get all that mass warmed up the flywheel effect keeps things very stable. It makes dust control much easier too.
Sharp solves all manner of problems.
- After I ask a stranger if I can pet their dog and they say yes, I like to respond, "I'll keep that in mind" and walk off
- It's above my pay grade. Mongo only pawn in game of life.
I installed infloor radiant heating when I built my shop 20 yrs ago. I used a 60 gal NG hot water tank, four zone manifold, pump, relay switch, and a thermostat--in slab tubing too!!
Full disclosure--good buddy is a plumber and gave wholesale costs on material and helped install. Biggest expense was the tubing. The slab is 1000 sq ft and we divided into 3 zones(one left over for the 2nd floor which I haven't needed yet). Cold season stays in the 40s and dips into the 30s sometimes here in the PNW and I keep the temp 55-60 deg unless I'm spraying finishes. Very comfortable and it doesn't take long for the temp to come up when needed. I would try to avoid any forced air system for dust issues and a propane hot water heater is much less costly than a tankless heater. Not sure of other cost comparisons but the infloor radiant system has been great for me. Good luck
John,
I live very near you. Last year I installed 6 minisplits in my house and I am still overwhelmed with how well they work. I plan to add one to my shop in the future when finances allow. I currently have a 220v electric heater which keeps the shop above freezing and will get it up to the 50s on most winter days. You could get one of these for very cold days when the minisplit won't work, which shouldn't be that many. Or, if you don't have water in the shop, just don't work on those super cold days.
As has been mentioned, the minisplit has a major advantage in that it dehumidifies. I can't wait to get one in my shop for this reason alone. It not only limits rust on machines, but keeps lumber more stable, and helps with finishing, too.
The only advantage I can see for propane is the quick heating. However, the minsplit should do pretty well in a well-insulated space. I bet MA has some incentives for insulation and minisplits.
John, based on my experience with the unit in my shop, if/when we downsize, if the HVAC system in whatever home that is is old or inefficient...I'd replace with minisplit without hesitation. They are heat pumps but for cooling they are much, much more efficient than regular "whole house" type heat pumps. Brian may have had to use 6 units rather than a couple multi-handler units due to logistics for the piping between interior and exterior units for his particular home setup/design.
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The most expensive tool is the one you buy "cheaply" and often...
Happy to hear such overwhelming endorsement of the mini's but any way you cut 6 units is a lot of house. I am happy for him but I don't I have 6 rooms.
BTW we have discussed a few things over the past few months and I think my "garage" power situation should be improved in a major way soon. Hoping to have 50amp 240v soon. Right now I can't run my jobsite saw and a shop-vac at the same time on a single 120V 15amp circuit shared with my internet router and modem.
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The most expensive tool is the one you buy "cheaply" and often...