Heaters

Hot Tub & Pool Heaters FAQs

• What does a hot tub heater do?

  A hot tub heater warms the water by circulating it through a heating element, ensuring a comfortable and relaxing soak. It works with the control system and thermostat to maintain your desired water temperature.

• How do I know if my hot tub heater needs replacing?

  You may need a hot tub heater replacement if:

  • The water won’t heat or takes too long to warm up.
  • The heater trips the breaker when turned on.
  • There are visible signs of corrosion or damage.
  • The temperature is inconsistent, even when set correctly.
  • You get an error code related to heating issues.
• What are the best brands of hot tub heaters?

  Some of the most reliable hot tub heater brands include:

  • Balboa Heaters – One of the most popular and trusted brands.
  • Gecko Heaters – High-quality, energy-efficient designs.
  • Hydroquip Heaters – Known for reliability and durability.
  • LX Heaters – Affordable and widely used replacements.
  • Laing Heaters – Compact and efficient circulation heaters.
• What size heater do I need for my hot tub?

  The most common heater sizes are:

  • 2.0kW Heaters – Suitable for smaller hot tubs or 13A plug-and-play models.
  • 3.0kW Heaters – Standard for most hardwired hot tubs.
  • 5.5kW+ Heaters – Used in larger swim spas or high-powered systems.

  Check your existing heater’s specifications before purchasing a replacement.

• Can I upgrade my hot tub heater for better efficiency?

  Yes! Many modern heaters are more energy-efficient, and you can upgrade to a titanium heater element, which lasts longer and resists corrosion from chemicals.

• How do I install a new hot tub heater?

  Installing a hot tub heater involves:

  1. Turning off power at the breaker.
  2. Draining the hot tub to access the heater.
  3. Disconnecting the old heater from the control box.
  4. Installing the new heater and reconnecting wiring.
  5. Refilling and testing for proper heating.

  If you’re unsure, we recommend hiring a professional for safety.

• How long do hot tub heaters last?

  A high-quality hot tub heater typically lasts 3-5 years, depending on water quality, chemical balance, and maintenance. Using a water softener or scale inhibitor can help extend its lifespan.

• Why is my hot tub heater tripping the breaker?

  Common causes of a heater tripping the breaker:

  • Faulty heating element – If it’s shorted, the breaker will trip.
  • Water in the electrical housing – Moisture can cause a short circuit.
  • Corroded or damaged wiring – Loose connections can overload the system.
  • Dirty or clogged filters – Poor water flow can overheat the heater.
• Can I use a heat pump instead of a standard hot tub heater?

  Yes! A hot tub heat pump can significantly reduce energy costs by using ambient air to heat the water, working alongside or replacing a traditional electric heater.

• Where can I buy a replacement hot tub heater in the UK?

  Find high-quality replacement heaters at Wizard Hot Tubs, with fast UK delivery and expert advice.