Is pre heated water bad for a heat exchanger?

[jcooper]

Anything wrong with running hot water out to the tm? Is hot water considered bad for the HX(or anything)?

Sooo, flipping cold and I carry no water, generally hooking up in the home or garage and hoping it don't freeze by the time it gets to the van, warmer water will obviously help with that.



And yes... A supply/garden hose with water flowing will freeze by the time it gets to the truck.

 

[Lee Stockwell]

We've done it with no ill effects.

Hot water will also chill and freeze quickly in this weather. Keep it flowing.

 

[Out of Character - 0]

Most water pumps have a max inlet temp of 145-165F depending upon the pump

 

[KevinD]

Most water pumps have a max inlet temp of 145-165F depending upon the pump

Most home heaters are not set above 140 and by time it flows on and off through a length of garden hose on the cold ground it will even be lower.

 

[Spurlington]

I'm thinking the garden hose connections is what freezes .. the shut off or the connector itself reduce from the 3/4 in to less than 1/4 .. you should put a garden hose splitter at the truckmount with a 10 ft hose leading into the grass area .. open it enough for a slim flow .. that might keep the water from freezing .. you could also wrap foam pipe insulation around your brass parts .. and if you don't have a port hole, use a heavy moving blanket or strip of carpet .. clamp it to the roof rail draped over your van door opening .. that'll keep it warm

You can also wrap a heavy towel around the spigot or grammas afghan

 

[jcooper]

Thanks guys

 

[dealtimeman]

Keep it below 180 to protect your pump

 

[Lee Stockwell]

Keep it below 180 to protect your pump

...which means there is no way in Hades to get water from any inside water heater...via a hose on the ground, and end up with water too hot for your pump.

Don't worry about it hurting anything.

 

[rwcarpet]

When I get to the job, I start up the Genesis, find my water source, connect, and run a hose into the vac port from my courtesy supply hose. Just crack it open....flowing water won't freeze. When ready to clean, and the final supply line is connected, turn off the hose and get to cleaning. Just keep that wand moving.

I don't use hot water into the van because I run a Kinetico water softener, and there is a limit to incoming water temp for the Kinetico.