I am tired of not being able to work in the shop from December to March, so I trying to find a suitable heating solution.

As background, I work in a two car garage that is 20’x25’, with 8’ ceilings. It’s sheet-rocked and insulated (The garage doors could use some of those insulating panels, though, so that’s also in the works). I can only manage to work there every other weekend, and I can tolerate cold very well (in fact, I like it cold… to a degree). So I was thinking that I would like my shop to be at maybe 55F while I work there and while some glue-ups settle and the rest of the time at above whatever temperature is needed so finishes and glue are not ruined (45F – 50F?).

I don’t want to deal with exhaust issues, condensation-induced humidity or cumbersome installations, and that’s why I am opting towards electric, even though, it’s probably not the most economically efficient source of heat. Currently, I am leaning heavily towards either of these:

Dayton G73 Electric Garage Heater, 5000W http://www.amazon.com/Dayton-G73-Electric-Garage-Thermostat/dp/B000TK2SWO/ref=wl_it_dp_o?ie=UTF8&coliid=I3EOGS09L3EPQP&colid =3243OCS6C0GX3

Farenheat FUH5-4, 5000W http://www.amazon.com/Fahrenheat-Ceiling-Mount-Automatic-Electric-Heater/dp/B0000AXEZV/ref=wl_it_dp_o?ie=UTF8&coliid=I3E9BZMHZKRPBS&colid =3243OCS6C0GX3

(for what I've gathered here at the Creek, they are basically the same machine, with a different brand name on it).

In your opinion, would these be suitable for my needs? Do you know of a good source to purchase these heaters either online or near my area (Boston)?

Any other suggestions/thoughts are also welcome!