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Old 01-07-2010, 12:52 PM   #1
The Trusted Handyman
 
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Cold water going into Tankless Water Heater


I'm looking for some ideas for suggestions.

A client of mine had a tankless water system installed last summer. They love it. It works great. Now that the winter is here, not so much. They can not get the same hot temperature as before. After having it serviced they were told by the serviceman that the problem related to the drop in the incoming water temp due to the winter. Not to argue weather that's true or not, I am looking for a solution.

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Old 01-07-2010, 02:27 PM   #2
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Cold water going into Tankless Water Heater


Quote:
Originally Posted by TrustedHandyman View Post
I'm looking for some ideas for suggestions.

A client of mine had a tankless water system installed last summer. They love it. It works great. Now that the winter is here, not so much. They can not get the same hot temperature as before. After having it serviced they were told by the serviceman that the problem related to the drop in the incoming water temp due to the winter. Not to argue weather that's true or not, I am looking for a solution.
I have a Bosch tankless water heater (800 ES). You can "pre-heat" the incoming water (up to 140 degrees) via a variety of methods. One is to use the draining water to heat up the incoming supply (the copper line systems are like $140). You can also use a mini-tank. I run my hot water incoming lines and outgoing lines near in-floor radiant heat lines.

Or you can upgrade the unit to something more powerful.

Good luck.


Last edited by gbwillner; 01-07-2010 at 02:33 PM.
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