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Old 09-29-2016, 12:16 PM   #1
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Girard tankless water heater

The heater works well for showers and kitchen use.
My problem is the bathroom vanity where the rate of water flow isn't sufficient to open the gas valve igniting the heater.
How might I increase that flow on city water hookups? I'm operating at 40psi.
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Old 09-29-2016, 01:43 PM   #2
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Do you have a regulator installed? Can it be changed?
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Old 09-29-2016, 02:01 PM   #3
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Interesting article on the Girard on demand water heater .

https://www.truma.com/us/en/press-ev...-blog-post.php

I am at the one year point Looking to get the Truma AquaGo installed . The Girard waste too much water . It has not worked reliably in the 11 months I have had my unit . As for increasing the flow on the Vanity sink ,I did not find a way to increase the flow . The aerator in the vanity I can not get off . I had to add an accumulator so the water pump would not cycle . The water at the at the vanity is way too hot with The Girard GSWH-1m second generation . Dreamgolfer which Girard tankless heater do you have ?
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Old 09-30-2016, 07:16 AM   #4
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Pull the faucet aerator out and clean it.. I will bet you will find it is full of gunk. That should fix the low flow and get you some hot water...
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Old 09-30-2016, 11:02 AM   #5
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Quote:
Originally Posted by Dreamgolfer View Post
The heater works well for showers and kitchen use.
My problem is the bathroom vanity where the rate of water flow isn't sufficient to open the gas valve igniting the heater.
How might I increase that flow on city water hookups? I'm operating at 40psi.
40psi on city hookup?
do you have a pressure reducer inline?

If so, pull it and see if things improve.
If not, I agree - somethings in there that's clogging things
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Old 09-30-2016, 03:54 PM   #6
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Our Jayco dealer pulled the aerator out and now we get hot water in the bathroom, before we could not get hot water there. It makes some what of a mess with out aerator, but at least we have hot water. In order to get this tankless water heater to work for us, we have to adjust the temperature for when we take a shower or when we are washing dishes, not convenient, but it works. We put the temperature at what we like for showers and never touch the cold water. It is great to have an endless supply of hot water for a shower. It even worked for us when we weren't hooked up to water and were using the pump.
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Old 09-30-2016, 11:21 PM   #7
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And now you know why many of us have replaced the POS water heater with tank type gas/electric.
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Old 10-02-2016, 10:43 PM   #8
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I would like to meet the Girard company salesman that sold the contracts to the RV industry. He is one heck of a salesman!!
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Old 10-02-2016, 11:04 PM   #9
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Quote:
Originally Posted by Dreamgolfer View Post
The heater works well for showers and kitchen use.
My problem is the bathroom vanity where the rate of water flow isn't sufficient to open the gas valve igniting the heater.
How might I increase that flow on city water hookups? I'm operating at 40psi.
Open another faucet at the same time.

These tankless systems are nice in theory...
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Old 10-03-2016, 06:47 AM   #10
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I have never had a problem with the heater on full hookups. We have plenty of hot water for dishes and in the bathroom. I can run 3 women through the shower back to back to back. It works great for me and it's one of my favorite features of the camper.
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