Comparing R410A, R32, and R290: What’s the difference between them?
Choosing the Right Heat Pump for Your Heating System?
If you’re considering upgrading to a hot water heat pump, replacing your diesel or gas boiler, you’ve probably come across different refrigerant options—R410A, R32, and R290. But what do these numbers mean, and which one is best for your home? Let’s break it down in simple terms.
Why Does Refrigerant Matter?
Refrigerants are the heart of any heat pump system, transferring heat from the air into your water or home heating system. The efficiency, performance, and environmental impact of your heat pump depend largely on the type of refrigerant used.
Does these heat pumps work in low temperatures?
Yes, heat pumps supplied by Warmth.NZ are rated to work under -25 degrees.
While air source heat pumps can work under low temperatures like -25 degrees, despite the brands, they all typically experience reduced efficiency in colder temperatures. The exact values would depend on the specific heat pump design and refrigerant used.
Safety concerns around R290 being highly flammable
While R290 is highly flammable, R290 in a heat pump isn’t as high risk because it contains much smaller amounts (300 ~ 600g) and is sealed inside a controlled system. Even if it leaks, the volume is so small that it’s less likely to cause major harm compared to an LPG bottle (9 ~ 45kg per bottle), which is currently widely installed in New Zealand Homes.
While R290 heat pumps are designed with built-in safety features, proper installation according to industry standards is essential to ensure safe operation and minimize any risks
Which Refrigerant is Best for You?
If you’re replacing a diesel or gas boiler where higher temperature water is required: R290 are better options due to their high efficiency and long-term cost savings.
If you’re looking for more sustainable option with long-term peace of mind: R290 will be your go to.
If you’re replacing an old hot water heat pump, and need consistent heat output: R32 provides a balance between efficiency, affordability, and availability.
Future-Proof Your Home Heating
With diesel boiler phase-outs and increasing energy costs, switching to a hot water heat pump is a smart long-term investment. Choosing a refrigerant like R290 ensures better efficiency, lower running costs, and a lower carbon footprint.
Need Help Choosing the Right Heat Pump?
Our team specializes in boiler conversions for underfloor heating, radiator heating, with a high-efficiency heat pumps. Contact us today for expert advice on the best system for your home.