?     Asked on 12/29/2011by Guest

How do you know if a pool heater is a propane heater or a natural gas heater?
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A  Answered on 12/29/2011 by InyoPools Product Specialist Patrick P.

Typically in the product name we use the abbreviation of "LP" for propane or "NG" for natural gas. Click here for a full listing of our >Pool Heaters.
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?     Asked on 1/16/2012by Guest

Will a gas heater operate at the low speed of a dual speed motor?
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A  Answered on 1/16/2012 by InyoPools Product Specialist Patrick P.

Probably not - Most gas heater will shut off at low GPM levels (20-40) to keep the heater cores from overheating - 20 for 200 BTUs, 40 for 400 BTUs. Depending on your pool system you might get these GPM levels at the low speed but generally these heaters must be run at the motor's high speed.
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?     Asked on 10/10/2012by Guest

What is the difference between an Electronic and Millivolt ignition?
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A  Answered on 10/10/2012 by InyoPools Product Specialist Patrick P.

The basic answer is that Millivolt is the old style of ignition, using a standing pilot light. While the electronic ignition uses a spark start system like a gas grill. Electronic ignitions are more efficient in gas usage and also are better suited for high wind areas where a pilot light might get extinguished.
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?     Asked on 10/18/2012by Guest

What is the elevation rating for the Hayward H-Series Low Nox Heaters
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A  Answered on 10/18/2012 by InyoPools Product Specialist Patrick P.

Per Hayward, the Hayward H-Series Low Nox Heaters have an elevation rating up to 7,700'
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?     Asked on 10/8/2013by Guest

Where can my heater be installed?
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A  Answered on 10/8/2013 by InyoPools Product Specialist Patrick P.

There are specific venting requirements and clearance distances that must be met to ensure proper operation. Consult the owner’s manual for exact specifications for your model of heater.NOTE: Gas fired heaters should be diagnosed and repaired by trained personnel.
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?     Asked on 4/7/2020by nelson mcroberts

how can i tell when heater model was built,pertain to parts on older model h4001==manufacters code 402--s/n 4021 0056--part being by pass valve and thermal by pass thermostat
 Reply

A  Answered on 4/7/2020 by InyoPools Product Specialist Matt S.

The manufacturer Hayward would be able to determine the manufactured date using the serial number. Hayward can be reached by calling 888-429-4635
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?     Asked on 4/7/2020by nelson mcroberts

where can i get part for hayward pool heater h4001 manufactured in feb 2004, i know that's a long time ago,but i know someone still should have parts. serial #4021 0056-model 4001 made in feb 2004
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A  Answered on 4/8/2020 by InyoPools Product Specialist Lennox H.

Hi, Nelson. Available parts are listed on the Hayward H-Series and H-Series ED1 Parts Diagram
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?     Asked on 4/14/2020by nelson mcroberts

i need a on /off switch for this model heater
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A  Answered on 4/15/2020 by InyoPools Product Specialist Hector F.

This Hayward H series heater has a dual or single thermostat switch option which both can be viewed by clicking here and seeing key number 35. 
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?     Asked on 6/4/2021by Bruce Washington

What is the part number, nd price, of a thermostat for an HP1501 heater?
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A  Answered on 6/4/2021 by InyoPools Product Specialist Craig C.

Hello Bruce.  Attached please find information specific to the Hayward Pool Heater 150000BTU NG MV Ign - H1501.  If this is your heater, then the thermostat is part #HXTST930.  Please verify the heater manufacturer and model number to ensure the correct replacement part.   H-Series Thermostat (HAXTST1930)   Hayward H-Series and H-Series ED1
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