Question about Teledyne Laars Laars Lite 2 Pool Heater 125,000 Btu / Propane Gas

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Heater comes on but getting cold water in pool return, heater is 7 years old never had problem before!

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If you have a two speed pump,try it at slower speed to keep water in heat exchanger longer

Posted on Jun 21, 2009

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Posted on Jan 02, 2017

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Black water coming out of returns from solar panels on roof of my home. Panels are 15 years old and there was frost in San Diego the nite before it happened


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Jun 2, 2015 - Photo of solar hot water panels on house roof. ... What if you cut the top and bottom off a plastic bottle and fitted pipes at each ... This is the technical name for the big black panel that sits on your roof. ... The heat is then passed into the hotwater tank, and the cooled water (or fluid) returns to the collector to ...

Solar water leak - YouTube? 1:46https://www.youtube.com/watch?v=WaWkzfs6bikMay 22, 2012 - Uploaded by EnovativeGroupLeaky solar system, enovative group investigates... ... Solar water leak ... Solar Water Heating Panel and ...Pool Solar Panel - A How to Fix - YouTube? 2:50https://www.youtube.com/watch?v=f_KzEsxQhbEJul 7, 2012 - Uploaded by Clive WoodrowEasy and cheap way to fix a leak in your pool solar panel. ... The pipe (to carry the water to and from the ...

Dec 21, 2015 | Solar Pool & Spa

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Hello my Raypak Versa Heater sounds like its working just fine. I have it on high and it is definetely letting off heat, but my pool temp has only climbed 1/2 a degree in 4-5 hrs. I have a 25ft x 8ft...


When checking functionallity of this heater heres what we need to look at.
Your pool is 6660 gallons with a 55,000 btu pool heater.
Right off the bat I can tell you that this heater is meant for a spa or small pool only.
Depending on where you are located this heater will not even keep up with heating this water in cold temperatures. You should have a 100,000-150,000btu heater installed for this pool.

Since this is what is installed, here it goes.
Make sure there is adequate flow to the heater. All heaters have a recommended flow rate which is more more productive than one that is too fast or too slow. Ideal for this heater is 55-65 gallons per minute, so make sure that the pump is not clogged and flowing freely.

Also, if this is an old heater and hasnt been serviced in quite a while, then the heat exchanger is probably overdue for a cleaning. When the heat exchanger gets dirty, all that heat produced by the burners just gets vented instead of heating the water. a yearly service is highly recommended on these low efficiency heaters.

By the way, you have a 55,000 btu heater that was 81% efficient the day it was installed.
This means that the actually heating btu's is already down to 50000.
the efficiency of these units will go down 2% a year if serviced, and about 3-5% a year if not serviced.

Long story short, the heater is undersized, and probably also needs to be cleaned.

Nov 15, 2010 | Raypak Versa 55 Electronic Ignition...

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Heating but no hot water? i can feel the heat coming off the heater but not getting any hot water?? plz help. i have a raypak rp2100


You have a spring loaded valve inside the water manifold. Open the manifold and make sure that that valve is closing. Then or first make sure if you have a by-pass valve be sure that is almost closed.these will make sure that the water is going through the heater. Also remember you shouldn't be able to feel any hot water at the returns. That is part of what these valves do. They help keep anyone from getting scolded by too hot water. The water at the return should be no more than 7 to 10 degrees hotter than when it goes into the heater.

Oct 10, 2010 | Raypak Rp2100 Pool & Spa Heater Lonox 407k...

1 Answer

HEATER RUNS (HOT EXHAUST) WATER IS CURCULATING ( CAN FEEL AND HEAR) BUT WATER IS NOT WARM OR HOT ?


As hot water leavs the heater it mixes with cold water so what you feel at the pool side is barley warmer than the pool. This is ment to keep from scalding people in the pool or spa. 7-11 degrees is the max on the outlet.

Apr 24, 2010 | Hayward H Series Pool & Spa Heater 400k...

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I let my pool heater freeze


Once a Pool / Jacuzzi heater freezes they will haunt you again and again. You fix one leak and weeks or months later another one appears. Sometimes the only damge done is just the manifold gasket. It would be worth HANDS ON repair "estimate" to find out if it is the manifold or the heat exchanger that has failed. If the heat exchanger has failed BUY A NEW ONE.

Jan 24, 2010 | Pentair Minimax NT Heater

1 Answer

Hot water is flowing from the water heater into


boiler type? Combi,standard,if your boiler is a combi the non return valve onto your heating line may be defective thus hot water slippng back through cold line best of luck

Oct 27, 2009 | Water Heaters

1 Answer

Our H Series pool heater is igniting but is not warming the pool. Every year for 4 years we have to have someone come out to get the heater started. We've had the start to the pilot replaced, the...


This could be a bad thermostat or temp sensor, or it could be a water flow problem. Ether the by-pass in the heater or on the outside pipes. It could just be the filter is dirty expecally if it is a DE filter. These should be taken apart and cleaned at least once a year. I hope this helps.

Jul 06, 2009 | Hayward Pool & Spa

1 Answer

Rapid Heat Bath Heater - indicator light on but not heating water


Bathtub heaters will not produce the heat out a the jets like you would feel coming out of a return jet in a swimming pool.
Bathtub heaters will ONLY maintain whatever temperature water you put in there. they only heat 1-2 degrees an hour. that is for a 1500 watt heater. Many heaters today are only 650 watt or perhaps 700 watt.

Feb 21, 2009 | Jacuzzi RapidHeat In-Line Heater U395000 [...

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