Hayward pool heaters are manufactured by Hayward Pool Products, a division of Hayward Industries, Inc., who have been manufacturing pool equipment for over 80 years. They are one of the large pool equipment producers and their range includes pumps, filters, pool cleaners, lighting, salt chlorine generators and pool heaters. The length of time they have been in the business indicates that they know what they are doing.

Their current range includes:

Hayward pool heaters for In ground pools

Hayward H SeriesUniversal H Series– A range of heaters powered by either natural gas or propane. Power levels range from 150K to 400K BTU/hr. The key benefit of these heaters is that they are energy efficient (84%) and produce emissions of NOx low enough to meet the most demanding local requirements including those of California and Texas.  These heaters feature electronic ignition and a digital LED control panel, they are designed for ease of installation as connections can be made on either side.

Hayward H250H Series Millivolt – Again a range of heaters powered by either natural gas or propane. The available power levels range from 150 – 250k BTU/hr with the Hayward H250 being the most popular. Their energy efficiency is 81% and there is no claim as to low NOx. Millivolt heaters have a pilot light for ignition and to generate a small amount of electricity for the controls. The benefit is that they do not need an electricity supply so there is more flexibility in choosing a location.

HeatPro Heat Pump – A range of heat pumps rated at 65 – 140 BTU/hr. They all feature electronic temperature control and dual thermostat, so you can heat both a pool and spa. In addition they they are specially designed to operate quietly and reliably whilst being extremely energy Hayward Heatproefficient.

Which to choose – A gas heater will be cheaper to buy but will cost more to run. A gas heater will also warm the pool quicker. If you are going to heat the pool constantly during the season then a heat pump will be best, however if you are only going to heat it occasionally then a gas heater will be the better buy. If going for a gas heater you would go for the Universal H Series unless getting electricity to the heater is a problem. In this case the H Series Millivolt provides a good alternative.

 

Hayward pool heaters for above ground poolsHayward Swimming Pool Heaters

Above Ground H Series (Hayward H100) – A 100 BTU/hr gas heater available in 2 versions for either natural gas or propane. A simple plugin electricity connection is provided which provides direct-spark electronic ignition. Energy efficiency is 81%. Induced draft system means the heater is not affected by wind so it can be located where it is needed.

Hayward Heat Pump HP50TA – A 50 BTU/hr. heat pump specifically designed for above ground pools up to about 13k gallons. The features and benefits are much the same as the HeatPro shown above. This heater requires a 220 volt 30 amp electricity supply.Hayward Heat Pump

Which to choose – The same factors apply as for in ground pools above.

In general it is better to buy a more powerful heater than you think you need but if you choose correctly any of the above Hayward pool heaters will provide years of good service.

The Hayward Universal H Series is a series of pool and spa heaters ranging from 150K to 400K BTU/hr with versions for either natural gas or propane. The key benefit of these heaters is their energy efficiency and low NOx emission levels which comply with all current California and Texas air quality emission standards.

To purchase from the Hayward Universal H Series range at Pool Supply World – Click Here.

The Hayward Universal H-Series heaters feature an industry leading 83%-84% thermal efficiency and this plus the low NOx emissions make these heaters about as environmentally friendly as a gas heater can be (unless you pay considerably more). This energy efficiency is achieved through the use of an insulated fire tile combustion chamber which minimizes heat loss and maximizes the heat output for every BTU used.

These heaters also save energy through their industry leading hydraulic performance which reduces the time the pump needs to be running.

Hayward H series pool heater

In addition to their environmental credentials the Hayward H Series heaters also have a number of other significant benefits (see Hayward H Series Brochure):

  • Heat Exchanger – “Finn Plate” heat exchanger specially designed for fast heating and longer life. In addition the use of cupro nickel provides exceptional corrosion resistance even with salt based chlorination systems.
  • Exclusive Silicon Nitride ignition system – provides dependable lighting and reliable operation.
  • Digital LED Control Panel – which makes it easy to see the water temperature and  monitor heater performance.
  • Dual Voltage – Can be installed with a 110 or 220 volt electricity supply.

The Hayward Universal H Series heaters are easy to install thanks to their low profile, light weight and CPVC plumbing capability. In fact the electric, gas and water connections can be on either side and only front panel access is needed for servicing.

The Universal H-Series heater combines advanced technology with universal-fit, for easy installation. This together with the range of models available means that it is a good choice for just about any pool.

These heaters are widely available and our recommended supplier is Pool Supply World. They offer competitive prices, which include shipping, and feedback from their customers is very good.

CLICK HERE to see their prices.

See other Hayward Pool Heaters.


The Hayward H100 is a natural gas or propane heater designed specifically for above-ground pools and spas. As a general guide it will suit a pool up to 24 x 16 feet.

To purchase the Hayward H100 from Pool Supply World Click Here.

Installation of the heater is easy thanks to its CPVC plumbing capability which comes ready to plumb into your existing pool filtration system. The package comes with a 120V electric cord which can be plugged in anywhere which just leaves the gas side of things which must be left to a professional.

This pool heater features:Hayward H100 Pool Heater

  • electronic, direct spark ignition system and a rapid-heat combustion chamber which delivers optimum performance and extended life.
  • energy-efficient FireTile® lined combustion chamber that provides 81% thermal efficiency which keeps energy costs as low as possible.
  • an integral induced draft system which makes this heater completely impervious to any high wind situations.
  • a rust resistant water path with polymer header assembly which protects the unit from corrosion.
  • jet-ported Eugenox burners which provide long life and easy maintenance.
  • single piece copper header/heat exchanger which guarantees leak-free performance.

The Hayward H100 will allow you to enjoy your above ground pool even more. It will lets you swim, comfortably, long after your friends have abandoned their pools for the season. It will also lengthen your swimming day – so you can exercise early each morning, or entertain later each evening. To view the product brochure Click Here.

Our recommended supplier is Pool Supply World because they offer competitive prices which include shipping (which is a significant extra with may suppliers).

CLICK HERE to see their prices.

Other Hayward Pool Heaters.

The Hayward H250 is part of the Hayward H-Series Millivolt pool heaters which do not represent the very latest in heating technology for swimming pools and spas but are still a great choice if you require a millivolt heater.

To purchase the Hayward H250 from Aqua Supercenter – Click Here.

NOTE – This page relates to the Hayward H Series Millivolt Heaters. If you are looking for the Hayward Universal H Series low NOx, including the H250FD, please Click Here. To see the Hayward brochure Click Here.

H-Series Millivolt heaters are gas heaters (models for natural gas and propane) and are easy to install and maintain, thanks to their low profile, light weight and CPVC plumbing capabilities. The Hayward H250 which, as the name suggests, can output 250k BTU, is the most powerful in the range but there are also 150k and 200k BTU versions.

The Hayward H-Series Millivolt heaters include a wealth of features to deliver precise water temperature control and achieve the ideal swimming pool and spa comfort level. They are also built to last.

Features include:Hayward H250 Pool Heater

  • Single header “V” baffle design heat exchangers which facilitate long life, fast heating and virtually no condensation.
  • Heat exchangers constructed with highly resilient Cupro Nickel for greater durability and longevity.
  • Rust resistant water path with injection-molded polymer header. This provides improved by-pass control and extends life by providing additional protection from the damaging effects of corrosion from high flow conditions and from occasional pool chemical imbalances, making the unit ideal for salt-chlorinated pools.
  • Burner system constructed of stainless steel and can easily be removed for cleaning and maintenance.

Together, these added technological improvements ensure that your Hayward heater outperforms and outlasts expectations.

These heaters are not as widely available as the Universal H Series but we did find them at a good price at Aqua Supercenter (February 2012). To see their prices click the link below:

CLICK HERE to see price for H-Series Millivolt 250,000 BTU

Other Hayward Pool Heaters.