Your spa is designed to deliver warmth, comfort, and relaxation—but all of that depends on one critical component: the heating element. If your spa heating element isn't working efficiently, it won’t just take longer to heat your spa—it’ll also drive up your energy bill. In fact, a heating element covered in scale or struggling with poor water flow can use significantly more power to maintain temperature.

At The Spa Shop, we’ve seen how simple maintenance can make a big difference in both spa performance and running costs. Follow these expert tips to protect your heating element, extend its lifespan, and avoid unnecessary power use.

1. Keep Your Water Balanced

Unbalanced water is the number one enemy of your heating element. High calcium levels and incorrect pH can cause scale to form, reducing the heater’s ability to transfer heat efficiently. If left untreated, it may overheat and fail.

Tip: Test your spa water weekly. Keep pH between 7.2–7.8 and maintain proper alkalinity to prevent scaling.

2. Use Quality Spa Chemicals

Not all spa chemicals are created equal. Harsh or incompatible products can cause premature wear on internal components, especially the heating element. BioGuard’s spa range is designed to be effective while being gentle on your spa system.

Tip: Choose trusted brands like BioGuard for your spa sanitising routine. They’re formulated to maintain water clarity while protecting vital components like your heating element.

3. Flush the System with pipe cleaner

Residue, body oils, and unseen buildup can collect in your spa’s plumbing over time. This restricts water flow and forces your heating element to work harder than necessary.

Tip: Use BioGuard Swirl Away when draining your spa every 3–4 months. It clears out internal plumbing and helps your heating system run more efficiently.

4. Clean Filters with BioGuard Filter Renew

Restricted water flow due to clogged filters puts unnecessary stress on your heating element. This can lead to overheating, poor heating performance, and increased electricity use.

Tip: Rinse your filter every 2–4 weeks and deep-clean it monthly using BioGuard Filter Renew. Replace your spa filter at least every 12 months to ensure consistent water flow and heater protection.

5. Maintain Correct Water Level

Operating your spa with low water levels can cause the heating element to become exposed. When this happens, it can dry-fire and burn out, leading to costly replacements.

Tip: Always keep the water level above the highest jet before turning your spa on.

6. Book Regular Spa Servicing

Even with great water care, professional inspections can catch early warning signs of heating element damage or electrical faults.

Tip: Schedule annual servicing with The Spa Shop. Our technicians can test the heater, check flow rates, and provide tailored advice to keep your spa in top shape.

Final Thoughts

Your spa heating element doesn’t just affect your comfort—it also affects your power bill. By maintaining water balance, using high-quality products like BioGuard, and keeping your filtration system clean, you’ll help your heater work efficiently and save on energy costs.

If you’re unsure whether your heating element is working as it should, get in touch with The Spa Shop for professional advice, servicing, and the best range of spa care products.