If you’ve got a pool in New Zealand, you probably know the frustration of freezing water – even in summer, our weather can be all over the place. But heating a pool can get expensive fast. So, what’s the best (and cheapest) way to keep your pool warm without running up a massive power bill? Let’s get straight into it.
Make the Most of a Solar Pool Cover
Honestly, this is one of the easiest and cheapest things you can do. A solar pool cover (or solar blanket) is designed to trap heat from the sun and stop warmth from escaping overnight. Think of it like putting a lid on a pot – it keeps the heat in rather than letting it evaporate.
A good-quality solar cover can raise your pool temp by 4-8°C, and the best part? Zero power costs once you’ve bought it. Check out Para Rubber or Splash Direct for affordable options in New Zealand.
Use a Solar Heating System
If you want to step things up a notch but still avoid massive electricity bills, solar pool heating is the next best thing. It works by running your pool water through solar panels on your roof (or a sunny part of your property), heating it up as it circulates.
Yes, there’s an upfront cost to install solar heating, but once it’s in place, it runs almost free. The savings add up quickly, so if you plan to use your pool often, it’s worth looking into. Companies like HeatPumpPoolParts NZ or Ecoonline offer solar heating setups designed for homes in NZ.
Choose a Heat Pump for Low Ongoing Costs
A pool heat pump is another efficient option if solar won’t cut it. Heat pumps use electricity, but they work by pulling heat from the air rather than generating it from scratch – kind of like an air conditioner in reverse. That means they’re way more energy-efficient than traditional electric or gas heaters.
If you go for a high-efficiency heat pump, you can expect to pay around 30-50% less on heating costs compared to standard heating systems. Some good ones are available from BWT Pool Products and Swimming Pool Warehouse.
Use a Black Hose Trick (DIY Solar Option)
Here’s a super budget-friendly trick – all you need is a long black garden hose. The idea is simple:
- Lay a black hose in a sunny spot, coiled up to absorb as much heat as possible.
- Connect it to your pool’s pump or a tap and run water through it.
- As the water moves through the hose, it heats up before flowing into the pool.
It’s a free (or nearly free) way to warm your pool, and while it won’t heat water as fast as a proper system, it’s a great DIY hack if you’re on a tight budget.
Keep the Wind Off Your Pool
Wind steals heat, plain and simple. If your pool is exposed, adding some windbreaks – like hedges, fences, or even simple barriers – can stop heat loss. It’s a small change that makes a big difference, especially in cooler regions like Wellington, Christchurch, or Dunedin.
Heat Only When You Need To
If you’re using a pump or heater, don’t just leave it running. Plan when you actually need your pool warm and heat it only when necessary. A timer system can help make sure you’re not accidentally running it all day.
Pro tip: Run your heating system during the warmest part of the day to reduce energy use.
The Best Cheap Heating for You
If you want to spend the least and still get results, go for a solar cover – it’s a no-brainer. Want a long-term option? Solar heating is cost-effective over time, and a heat pump gives reliable warmth with much lower power costs than traditional heaters.
For DIY types, the black hose trick is free, and cutting wind exposure helps hold onto heat. Whatever you choose, the key is to trap as much heat as possible while spending as little as possible. Enjoy your warm pool!
Leave a Reply