Cabin heater replacements?

[eethan]

I have 3 coolant based heaters in my bus cabin: one under the drivers seat, and two in the cabin. They are loud, old, and take up more space than I would prefer, so i want to remove them, but still want to have engine driven heat. Has anyone ever replaced theirs with radiators meant for hot water, like this one? https://www.homedepot.com/p/MYSON-W...pace-Heater-Not-Electric-WHIII-9000/207131368

 

[weboughtabus]

I have 3 coolant based heaters in my bus cabin: one under the drivers seat, and two in the cabin. They are loud, old, and take up more space than I would prefer, so i want to remove them, but still want to have engine driven heat. Has anyone ever replaced theirs with radiators meant for hot water, like this one? https://www.homedepot.com/p/MYSON-W...pace-Heater-Not-Electric-WHIII-9000/207131368

A lot of people opt for something automotive, like these ones. I'm not an expert, but I believe they were recommended because the coolant running through a finned system isn't going to throw a lot of heat out without the fan to distribute the warm air. My plan is to get one or two of these and integrate them with the toe kick on our cabinets. That way they're tucked away but still throw some heat out.

 

[PNW_Steve]

I think that those may work OK.

My only concern is that they are 1/2" hydronic connections, compared to the 1" connections on the heaters you are replacing, and you will restrict coolant flow somewhat. That MAY reduce the effectiveness of your defroster.