As summer winds down, pool owners must decide how to prepare their Hayward pool heater for the cold months ahead. Improper winterizing can lead to cracked heat exchangers, damaged piping, and failed startups next season. But winterizing steps vary widely depending on your heater model.
The key is identifying whether you have a gas or heat pump heater in order to follow the correct winterizing protocol. Draining water, disconnecting components, enclosing the unit, and shutting off gas/electric connections all play a role.
This article will provide winterizing instructions specific to Hayward gas and heat pump pool heaters. You’ll learn how to verify your model, safely shut down systems, prevent weather damage, and ensure a smooth restart when swimming season returns. Don’t resign yourself to next spring’s headaches – winterize properly so your Hayward heater lasts for years to come!

Steps to Winterize a Hayward Pool Heater
Follow these detailed steps to winterize your Hayward pool heater effectively.
Step 1: Power Off and Disconnect
Begin by turning off the power to the Hayward pool heater. Disconnect the electrical supply to ensure safety during the winterization process.
Step 2: Remove Water from the System
Drain all water from the heater and associated plumbing to prevent freezing. Open the drain plugs on the heat exchanger, headers, and other components. Be thorough in draining water from the entire system.
Step 3: Clean the Heater
Before storage, clean the Hayward pool heater. Remove any debris, dirt, or leaves from the unit. A clean heater is less prone to corrosion during the winter months.
Step 4: Remove and Store Sensors
Carefully remove any sensors attached to the heater. Store them in a safe and dry place. This prevents potential damage from freezing temperatures.
Step 5: Store the Hayward Heater Indoors
Whenever possible, store your Hayward pool heater indoors for the winter. If indoor storage is not an option, use a weatherproof cover to shield the heater from the elements.
Step 6: Insulate Exposed Pipes
If your heater is installed in an area where pipes are exposed, insulate them using pipe insulation. This additional layer helps prevent freezing and potential damage to the plumbing.
Step 7: Regular Maintenance Check
Periodically check your stored Hayward pool heater throughout the winter. Ensure the cover remains secure and inspect for any signs of damage or wear.
How to Identify Your Hayward Heater Model?
Hayward manufactures several different pool heater models with varying winterizing procedures:
- Gas heaters – Use natural gas or propane for heating. Models include Summit, Phoenix, and Epoch.
- Heat pumps – Use a compressor and refrigerant like an AC unit. Models include AquaRite, AquaPlus, and ProLogic.
- Electric heaters – Uncommon and being phased out. Similar winterizing as gas heaters.
Check the data plate on your unit to confirm the model number and fuel type. This determines the required winterizing method.
Gas Heater Winterizing Tips
For Hayward gas heater models follow these winterizing steps:
- Shut off gas supply and disconnect gas line. Seal any open fittings.
- Drain all water from the heater piping and heat exchanger.
- Open drain valves and leave open.
- Add RV antifreeze to coat heat exchanger interior to prevent corrosion and freezing.
- Enclose unit in a protective housing and cover vents/openings.
Heat Pump Winterizing Tips
For Hayward heat pump models, winterize by:
- Bringing the control panel indoors to prevent temperature damage.
- Removing and draining the circulation pump. Store pump indoors.
- Disconnecting and coiling hoses while opening drain valves.
- Constructing a weatherproof enclosure around exterior components.
- Elevating enclosure to avoid snow accumulation.
Reflections
Preventing avoidable Hayward pool heater damage over winter comes down to properly identifying your model and following detailed winterizing steps. While involved, these best practices save money and headaches down the road. Now that you know how to winterize Hayward gas and heat pump models, you can ensure your heater survives the cold months in top shape. Here’s to an easy opening day when summer rolls around again! As always, let me know if you have any other pool winterizing or maintenance questions!
FAQs
Q1: Can I Leave My Hayward Pool Heater Outside During The Winter?
A: While it’s best to store your Hayward pool heater indoors, using a weatherproof cover can provide protection if indoor storage is not feasible.
Q2: Do I Need To Drain All The Water From The Heater?
A: Yes, draining all water from the heater and associated plumbing is crucial to prevent freezing and potential damage.
Q3: Can I Use A Regular Cover For My Hayward Pool Heater?
A: It’s recommended to use a cover specifically designed for pool heaters to ensure proper protection from the elements.
Q4: How Often Should I Check My Stored Pool Heater During The Winter?
A: Periodic checks every few weeks ensure that the cover is secure, and there are no signs of damage or wear.
Q5: Can I Skip Winterizing My Pool Heater If I Live In A Mild Climate?
A: It’s still advisable to winterize your pool heater even in milder climates to prevent any unexpected cold snaps from causing damage.