Warming a Graver Vise

[MoldyJim]

The last foundry shop I worked in had a 6' x 8' x 2' thick black granite surface plate.
During the winter they would open the garage door for ventilation.
That slab of rock would get CCCOLD!
You could practically see the frosty air flowing down to the floor off of it.

Really sucked the heat out of you when you got close.
The boss wouldn't let me use a space heater even while working right next to it or even on it to make patterns.

I ended up covering it with multiple layers of cardboard just to insulate myself from it.

I didn't stay there long my arthritis couldn't take it.

 

[Marlene]

heating pad and thermostat for cheap, I use the same sort of thing for warming seedlings when starting them early for the garden. There's probably a nice local pet store where you could buy the same stuff for a couple bucks more if you prefer (I do).

Amazon.com : Aiicioo Digital Thermostat Reptile Heating Pad - Hermit Crab Heater with Temperature Control 8 Watt Heat Source Combo Set for Reptiles Terrarium Wamer 10-20 Gal : Pet Supplies

Amazon.com : Aiicioo Digital Thermostat Reptile Heating Pad - Hermit Crab Heater with Temperature Control 8 Watt Heat Source Combo Set for Reptiles Terrarium Wamer 10-20 Gal : Pet Supplies

www.amazon.com

 

[Scratchmo]

I used to use my propane annealing torch to warm it up in the morning. Big wide flame. It took about a minute or two.

 

[Ronald Scott]

Thank you for the suggestions. I am leaning towards the use of a reptile heating pad.