Water Pre-heaters

by milspec6 Sun Aug 24, 2014 5:32 am

I was going over my winter upgrades list and I want to add a fresh water pre-heater to the system to help the HX do its job. In past years, I would fill my tank the night before and let the space heaters get it to more normal temp, but when on commercial work, I often have to direct feed the system with water not much more than freezing.

Does anyone make a decent pre-heater to help raise the temp a little prior to the fresh water tank? I really don't want to add another heater after the HX, but sometimes it can be tough to hold heat over 160 atw on the really cold nights.

by ODIN Sun Aug 24, 2014 7:01 am

no one makes one for the fresh tank except bane
you can add a coil to you fresh tank and T it into the heater core of the truck. That will raise the water temp as you drive the truck.

Problem is till the water in the fresh tank raises you are cooling your heating for the truck.

you could use an electric immersion heater to get it warmer over night.

There is no thing as free heat

by Freemind1 Sun Aug 24, 2014 8:46 am

Ever thought about an on demand, propane water heater? Like that are in homes? Few hundred bucks and are adjustable.....

by ODIN Sun Aug 24, 2014 11:48 am

problem what he has is it takes more energy $$$ to heat in coming 40 degree water than 60 degree water. What ever he chooses with have a cost and the cost may not be in dollar amount per BTU

No free lunch

by milspec6 Sun Aug 24, 2014 12:05 pm

Very true, nothing comes free...especially heat.

During the winter, I am almost 100% commercial withmost requiring direct water hook-ups as I will go over 400 gallons at a time.

I have access to the building's,electricity and was hoping that their might be a good device out there to heat the incoming water to the truck.

I actually tried to feed off their water heater once, but it was a pathetically small unit of around 15 gallons. Does any of those electric portable extractor heaters have any value here?

by ODIN Sun Aug 24, 2014 2:20 pm

no that with the flow you need your kind of screwed for options

small little giant #2 as your post heater will work fine.

by Floorguy Mon Aug 25, 2014 10:22 am

yea as much as you might not like propane, it works good...

mine is flipped, i have the heli-coil to use as a pre heater off the machine...then it feeds my propane unit....

plus the heli-coil works well for heat on furniture so i dont have to worry about the stupid heat a propane puts out

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