thermo switch with fan and speed control
Posted: Fri Nov 01, 2013 3:30 pm
Hi,
I need some help getting started with a Fan thermo stat system. I have a woodburner stove in a recess but the rear is to close to the wall, ideally I want to bring the stove forward but it can’t be done. To problems is heat staying at the top of the recess and not entering the room, the other is poor convection at the rear.
The stove top has a small lip at the rear so the gap is reduced at the top.
Two solutions are a fan at the top inside the recess pushing the air out and pulling air in, probably the best solution but it does get hot (over 200deg), fans do exist that run of the heat but cost around £150 (some are cheaper but I need it to be small).
The other solution is fans at the rear and bottom blowing air up. Hopefully this will also push air out of the top recess into the room.
The fans only need to gently move the air, to hard and swirls may occur and the air will never rotate out. I’m thinking two or three fans, probably small computer fans linked to a thermostat switch that switches on when a temperature is reached (~60deg maybe). It has to withstand high temperatures if I mount it on the stove ~350deg probably alot less in ambient behind the stove. It would be nice to have some kind of voltage regulator at the power point to change the fans speed.
So low voltage required, three fans, and a thermostat to switch on when heated. Any leads please
I need some help getting started with a Fan thermo stat system. I have a woodburner stove in a recess but the rear is to close to the wall, ideally I want to bring the stove forward but it can’t be done. To problems is heat staying at the top of the recess and not entering the room, the other is poor convection at the rear.
The stove top has a small lip at the rear so the gap is reduced at the top.
Two solutions are a fan at the top inside the recess pushing the air out and pulling air in, probably the best solution but it does get hot (over 200deg), fans do exist that run of the heat but cost around £150 (some are cheaper but I need it to be small).
The other solution is fans at the rear and bottom blowing air up. Hopefully this will also push air out of the top recess into the room.
The fans only need to gently move the air, to hard and swirls may occur and the air will never rotate out. I’m thinking two or three fans, probably small computer fans linked to a thermostat switch that switches on when a temperature is reached (~60deg maybe). It has to withstand high temperatures if I mount it on the stove ~350deg probably alot less in ambient behind the stove. It would be nice to have some kind of voltage regulator at the power point to change the fans speed.
So low voltage required, three fans, and a thermostat to switch on when heated. Any leads please