Flame Proof heaters for the drain pan

[smpsmp45]

We are working on a project to store chemicals. The evap side has to have all the flameproof fittings. Fans is not a problem. We are looking for Drain pan heaters I know those are available. has anyone used such heaters 7 what was the performance?

[TXiceman]

You need the exact electrical rating for the area and the gas involved. You may not be able to use electric heaters at all and have to go to a warm glycol coil to do the job.

Ken

[nevgee]

You will need to establish which standard you're going to work to such as ATEX (BASEEFA is no longer valid in the UK) and then find a heater that complies to that standard. As TXiceman states you must identifiy the gas/dust (hazard) type because the heater will need to be restricted to a surface temperature that falls within the classification of that gas/dust or hazard.

I would agree with TXiceman that the best option would be to use hot gas or glycol defrost coil. Much safer and probably a lot cheaper.