Hayward H100ID1 Pool Heater Review

This beast has BTU rating of 100000 which means you can pretty much heat up any pool size. The Hayward H100ID1 100,000 BTU Pool Heater measures 26.5 x 21.8 x 31 inches and weighs 74.5 pounds. The equipment is made from quality products and build of the product reflects it. Hayward H100ID1 100,000 BTU Pool Heater has automatic ignition system, which is important to make the operation automatic. Natural gas fumes are very less, and in toxic to the environment. The air is mixed with the fuel by the action of Induced draft technology which helps in optimum heating and all-weather performance. You can even operate Hayward H100ID1 100,000 BTU Pool Heater at high altitudes without any problem. Easy plugin 120 voltage cord for easy installation. The use of the best natural gas pool heater is restricted with the pool size of 450 square feet. Also, the altitude of 2000 meter above the sea level or less is desirable.

best natural gas pool heater

How It Works

Main area of usage is in pools, and spas, where you need instant amount of warm water and steam. Hayward H100ID1 100,000 BTU Pool Heater works fast compared to any other heater currently available in the market. The working is simple just ignite it and simultaneously, get the water pipe into it. The water will flow with the pressure head, and you will get warm water after some time. You can control the temperature by the regulators on it

Cost & Maintenance

The cost of operating the device is high, due to its high 100,000 BTU rating, fuel consumption will be more. But the service of the heater would be great. The Hayward H100ID1 100,000 BTU Pool Heater is pretty solid and doesn’t require any maintenance. It is because of the solid body and high quality heat exchanger inside. There is not any additional part required for installation, once invest is done, all you have to spend upon is fuel, and that’s a lot to spend on. If we talk about the electric part, then it may require some maintenance of wires and connections.

Shape & Design

The shape is a box, with a space for the water pipe, and outlet. The design is simple and compact. It doesn’t need much space for working. When working, the body is not at high temperature.

Best Features

  • It is highly Reliable and durable, due to solid body
  • Electronic ignition for automatic operation
  • Induced draft technology ensures optimum heating and performance in any weather
  • Body remains cool when functioning.
  • Plug-in 120 volt electric cord for easy installation
Pros & Cons

  • Heat up large size pool
  • Instant heating
  • Solid body
  • Automatic operation


  • Expensive
  • Fuel cost is more

Concluding, Hayward H100ID1 100,000 BTU Pool Heater can warm good sized pool, and operation is silent than heat pumps, that automatically makes them a good choice for small pool area. Also, their efficiency is great, but fuel cost is more. It is a great choice for big pool owners and spa lovers. This product is one of the best natural gas residence pool heater for your pool.