Hot water heater is really a luke warm heater

Posted by on May 15, 2007, 1:57 pm

I installed a new gas hot water heater and have an annoying problem:
I only have hot water in the morning if I run hot water (ie,
dishwasher) the night before. Otherwise, I have tepid water when no
hot water is used within ten hours or so. If I run hot water in the
morning for a few minutes, and wait ten or fifteen minutes, the heater
kicks on and recovers fairly fast. If I turn the heater up past
"hot", it just dumps hot water out from the overflow. It's like the
heater believes if I'm gone for ten hourse or more, I'm never coming
back. Any ideas?

Posted by Speedy Jim on May 15, 2007, 2:13 pm

conneticat@gmail.com wrote:

> I installed a new gas hot water heater and have an annoying problem:
> I only have hot water in the morning if I run hot water (ie,
> dishwasher) the night before. Otherwise, I have tepid water when no
> hot water is used within ten hours or so. If I run hot water in the
> morning for a few minutes, and wait ten or fifteen minutes, the heater
> kicks on and recovers fairly fast. If I turn the heater up past
> "hot", it just dumps hot water out from the overflow. It's like the
> heater believes if I'm gone for ten hourse or more, I'm never coming
> back. Any ideas?
>

The gas control (thermostat) is a pretty crude device.
The thermostat has a very wide differential (On/Off band).

And no 2 are alike. Sounds like you got a dud.

Now we'll see how responsive the company is...

Jim

Posted by on May 15, 2007, 2:18 pm

> The gas control (thermostat) is a pretty crude device.
> The thermostat has a very wide differential (On/Off band).
> And no 2 are alike. Sounds like you got a dud.
> Now we'll see how responsive the company is...
> Jim

Well crappo...it's out of warranty by now. Maybe it's being energy
efficient...

Posted by Speedy Jim on May 15, 2007, 2:52 pm

conneticat@gmail.com wrote:

>> The gas control (thermostat) is a pretty crude device.
>> The thermostat has a very wide differential (On/Off band).
>> And no 2 are alike. Sounds like you got a dud.
>> Now we'll see how responsive the company is...
>>Jim

>
>
> Well crappo...it's out of warranty by now. Maybe it's being energy
> efficient...
>

If the heater is new enough to keep going,
replace the control. I haven't looked lately,
but I guess controls are around $90.

Jim

Posted by on May 15, 2007, 6:23 pm

On May 15, 1:18 pm, conneti...@gmail.com wrote:

> > The gas control (thermostat) is a pretty crude device.
> > The thermostat has a very wide differential (On/Off band).
> > And no 2 are alike. Sounds like you got a dud.
> > Now we'll see how responsive the company is...
> > Jim

> Well crappo...it's out of warranty by now. Maybe it's being energy
> efficient...

You said you installed a new water heater, so how can it be out of
warranty? I have a garden variety State, from HD, that is about 6
years old and when the thermocouple on the pilot went bad I called
them up and they had a new one here in 2 days under warranty.

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