Ecotherm heater

I did a bit of research on them a while back.
They are really designed to go with the Swift Hot Water Service but by the look of it they could be fitted to any Van HWS provided they had the heating capacity.
Provided you have the room all you need is a connection to the hot water outlet on the HWS and a connection to the cold water inlet. It has a built in pump to circulate the hot water and a fan to circulate the air. Needs a 12 volt connection.
Installation instructions Ecotherm

Hi Carman's
You can read up on them in other forums (Caravaners forum and Grey nomads).
If your a bit of a handyman, not hard to install. There are mixed reviews. My external length of van is 19'. I wasn't happy with mine, eventually returned to supplier and got a refund thanks to Swift, who were very helpful.
It seems to me that they may work well where the unit is mounted close to the HWS, however you have to consider the actual length of pipework under van between them eg navigating around suspension, water tanks etc. I also found the fan too noisy, but that is just my view, others seem very happy with them.
Regards
TD

Thanks for the replies
The Carman's

If I was going to fit one I'd never use an auto tranny cooler as it's made of aluminium alloy and the water will corrode it out very quickly , especialy if you ever get hard water in your tanks.
Brass from a car heater is the only way to go ( that is if your going to do it ) and computer fans will draw a lot less current than the fan supplied with the Ecotherm type of setup