Anyone have a thermostat that will set below 40F?

[tlmartin84]

I need a thermostat that I can set below 40F. I just want to keep my shop warm enough through winter not to freeze to save on the heat bill.

I have a wifi which will drop to 40F. It is great, I can get up, turn the heat on from a remote location and don't have to go into a cold shop.

So have any of you found one?

 

[toyotadriver]

https://www.amazon.com/dp/B002Z7EBCE/?tag=atomicindus08-20

 

[jayoldschool]

Or, get a cheap old mercury one, and install it slightly canted to the left. That is how the zone for my garage is controlled, and it keeps it at a perfect 3-4C in the winter.

 

[zmaxmotorsports]

I usually tell people to keep the heat no lower than 50 if you have water in the buidling anyway.

 

[Sokoloff]

You could get a freezer defroster heater thermostat switch (closes below freezing, opens at some point just above freezing).

But, I'm with zmax: I think you want a decent margin over 32*F if you have plumbing in the building.

 

[tlmartin84]

I want a programmable and possibly wifi. The old mechanical type aren't going to cut it.

I have backup measures in place so yes I want to be able to turn the thermostat down to at least 35F. For instance the wall containing my plumbing has baseboard heaters, with a separate thermostat.

So please, just looking for a list of thermostats preferably digital, programmable, and wifi that will go below 40F.

I think Ritetemp brands will go to 35F. But I would like some confirmation on them.

 

[Reg1952]

I think the 40F thing is so you dont get condensation when you heat the place back up again.

 

[matt_i]

I have the one that ToyotaDriver linked in my shop. It works very well. I have left it on the minimum lever setting and it does not seem to freeze in there at that state...as verified by my exterior dial-type thermometer (not the pinnacle of accuracy but something...I should probably place water bottles around the shop and see if they go solid..). I usually ramp it up to 50F or 60F depending on how long I plan to be out there.

 

[Radix2]

I'm thinking that the difference between 35 and 40 in West Virginia is going to really really tiny savings wise. Sorry I couldn't help.

 

[Angelfire]

I think the Nest thermostats will let you set as low as 35......it's called their safety temp I believe.

 

[Weird Tolkienish Figure]

Haha, that is damn cheap. My thermostat is 45 and I keep it there except on the coldest days... when I'm not in the house. If there were pipes in there, i'd be pretty nervous to let it go that cold. 2 years ago it got so cold that plumbers couldn't keep up with all the burst pipes in the area.

 

[Angelfire]

Haha, that is damn cheap. My thermostat is 45 and I keep it there except on the coldest days... when I'm not in the house. If there were pipes in there, i'd be pretty nervous to let it go that cold. 2 years ago it got so cold that plumbers couldn't keep up with all the burst pipes in the area.

Interestingly, I left a cabin in northern NM set to 35 for 3 years while I was out of country. I did have a couple that visited once or twice a month but by and large it was left empty. The furnace is in the crawl space so that helped things I'm sure but with temps regularly dropping below zero (and as low as -50) up there, didn't have a single problem with the pipes. Similar situation for my home in ABQ although the temps don't get nearly that cold (and I don't have a crawl space).

 

[98ssuck]

i worked on a furnace that heated a curling rink. The unit was set to a balmy 38*f. It had a Johnson controls a-19 thermostat controlling it.

 

[tlmartin84]

I'm thinking that the difference between 35 and 40 in West Virginia is going to really really tiny savings wise. Sorry I couldn't help.

5 degrees is roughly 2kw per hour to maintain. That's 0.22/hour. If it cycles 4 times a day.....that is an additional $30.00 a month.

I know MI is colder, and for a longer period of time. But at 2600' winters here can get pretty cold, worse than the cold is the wind that comes with it.