Heating Radiator for wet environment 1

[EnergyProfessional]

I have a washbay application. in there it is wet and salty (from cleaning salt trucks). Due to the water I have a hard time finding a heating solution that needs electricity (i.e. unit heater etc.)

Anyway, I'm contemplating to install hydronic radiators. not a real challenge, except that I either need to have a permanent maintenance program to -repaint or need to find some that are better protected. Normally i use runtal/rittling radiators. They have heavier duty versions of their radiators (for higher pressure). But that just means thicker material, which just buys me more time but doesn't prevent corrosion.

I'm mainly looking for radiator without fan. if anyone suggests one of those fan-powered heaters, it needs to be NEMA4X or IP66 rated.


I did look into hydronic unit heaters, but none seems rated. Yes some manufacturers claim it is made for such environment, but JHA needs an actual rating. another option is to have a remote fan coil and bring warm air to the washbay area. but that has space issues, and the ducts also would be exposed to corrosive atmosphere.

 

[itsmoked]

I could see manifolds with a couple dozen PEX tubes that would never corrode but having to document the output would require building it and doing a test. Not that hard with some temp sensors and bunch of cardboard and a massflow sensor.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[LittleInch]

Have you tried these guys? They aren't cheap but know what they are doing wrt electric heaters in bad atmospheres.

http://www.chromalox.com/en/catalog...washdown-and-corrosion-resistant-unit-heaters

A bit off the wall but glass radiators?

Aluminium radiators?

https://www.screwfix.com/p/kudox-alulite-flat-aluminium-radiator-1800-x-470mm-black/719fh

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[MintJulep]

Give Super Radiator a call.

https://www.superradiatorcoils.com/

 

[willard3]

You can also purchase coatings on heat exchange surfaces to limit corrosion from most manufacturers.

Ask them

 

[EnergyProfessional]

thanks for the responses. To clarify:
- load is 180kBtu, so electric heat isn't feasible
- i should have mentioned, I'm in the US. so need a solution that can be bought here
- by radiator i mean a "radiating" heater. similar to this. I want to avoid a ducted solution. obviously that is feasible, but cost space we don't have.

 

[chicopee]

Instead have you checked into gas fired, non vented and wall mounted radiant heaters. My last employer of 20 years ago had over 20 such units in his spray painting bay (not booth). In the bay we spray painted heavy structural beams for federally funded bridge construction for the interstate system. Radiant heaters may be a better choice than forced convection heating units.

 

[EnergyProfessional]

I know gas heaters are used in these environments... but they are not rated to be NEMA4X or IP66.
currently there are gas fire unit heaters and when workers stand on the catwalk spraying over trucks with their 2" hose the heaters get a nice washdown...

Anyway, I found hydronic unit heaters that can be supplied with IP69 motors. so I should be able to use those.

 

[LittleInch]

Did you miss my post about Aluminium radiators?

e.g

https://www.amazon.com/Mr-Radiator-...uminium+radiators&qid=1575294544&sr=8-15&th=1

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Compositepro]

You might consider a hydronically heated floor and warm wash water.

 

[LittleInch]

oooh, warm salty aerated water. Talk about advanced corrosion of the trucks you're washing....

BTW those radiators you posted a link to are normally regarded as convection heaters, not "radiating"

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[EnergyProfessional]

LittleInch: your original link was to a site in british pounds, and I need a US vendor. Your second link to US amazon would fulfill that.. but is there a manufacturer link with technical data?

CompositePro: a few years ago they replaced the catchbasins and slab.... that would have been a great time to implement in-floor heat....

 

[itsmoked]

Out of the box it. Use a robot truck cleaner and use ice water if you want. Trying to make an area warmer that's showered in water is an expensive energy proposition.

Our city buses are all cleaned almost everyday by poking them into a bus-wash. No humans need be involved.

Keith Cress
kcress -

http://www.flaminsystems.com

 

[EnergyProfessional]

itsmoked: we are in WI, so we need to heat that area or water will freeze. Design temperature is 45°F.

 

[itsmoked]

Yikes.

Keith Cress
kcress -

http://www.flaminsystems.com