Chromagen vs Emerald: Which Heat Pump Is Better? (2026)
Quick Verdict
Emerald is the more efficient choice with a higher COP rating, meaning lower running costs over time.
Side-by-Side Comparison
| Feature | Chromagen | Emerald |
|---|---|---|
| Price range (installed) | $2,800 - $4,200 | $2,750 - $3,750Lower |
| COP (efficiency) | 3.5 | 5.2Higher |
| Tank warranty | 5 years | 7 yearsLonger |
| Compressor warranty | 5 years | 5 years |
| Noise level | 48dBQuieter | 49dB |
| Annual running cost | ~$338/yr | ~$228/yrLower |
| Refrigerant type | R134a | R134a |
| Country of manufacture | Israel | Australia |
| Australian made | No | No |
| Best for | Budget-conscious buyers wanting a reliable mid-range heat pump | Households wanting a high published efficiency and a long tank warranty without paying split-system prices |
Price Comparison
Chromagen starts from $2,800 installed (before rebates), while Emerald starts from $2,750. That is a difference of roughly $50 at the entry level. Emerald is the more budget-friendly option upfront, though Chromagen may deliver savings through lower running costs over time. Both prices are for fully installed systems before government rebates and STCs, which can reduce the out-of-pocket cost by $1,000 to $3,000 depending on your state.
Efficiency Comparison
COP (Coefficient of Performance) is the key efficiency metric for heat pumps. A higher COP means more heat output per unit of electricity consumed. Chromagen achieves a COP of 3.5, while Emerald reaches 5.2. The Emerald is 49% more efficient, which translates to roughly $110 less per year in running costs. Over a 10-year lifespan, that efficiency advantage adds up to approximately $1,100 in savings.
Warranty Comparison
Chromagen offers a 5-year tank warranty and 5-year compressor warranty. Emerald offers a 7-year tank warranty and 5-year compressor warranty. The Emerald has the stronger warranty coverage with 7 years on the tank, giving you 2 extra years of protection compared to the Chromagen. A longer tank warranty can provide significant peace of mind, as the tank is the most expensive component to replace.
Noise Comparison
Noise is an important consideration, especially for suburban installations where the unit may be close to bedrooms or neighbouring properties. Chromagen publishes 48dB for its quietest model, and Emerald publishes 49dB. The Chromagen is quieter at 48dB. At this level, you may want to consider placement carefully to avoid disturbing bedrooms or neighbours.
Climate Suitability
The type of refrigerant a heat pump uses significantly affects its performance in cold weather. Chromagen uses R134a refrigerant, while Emerald uses R134a. Both units use the same refrigerant type, so cold-weather performance should be comparable. R134a performs well in moderate climates but may lose some efficiency in very cold conditions.
Pros and Cons
Chromagen
Pros
- Competitive pricing
- Good range of sizes
- Widely available through plumbing suppliers
- Established brand (60+ years)
- Decent efficiency for the price
Cons
- Not the quietest (48-50dB)
- Only the 235L and 280L use R290; the 170L is an older design
- Shorter warranty than premium brands
- Not Australian-made
Emerald
Pros
- Among the cheapest R290 units with a published COP above 4.8
- Pro series carries a 7-year tank warranty, 8 if you register it
- Two magnesium anodes on the Pro tank
- Widely stocked, so quotes are easy to compare
- Runs on the heat pump alone down to -7C
Cons
- Manufacturing location is not published
- Not on the Solar Victoria locally made list, so it earns the lower Victorian rebate tier
- The Select series drops to a 5-year tank and 2-year labour warranty
- Emerald quotes 39 to 40 dB from 3 metres on its web pages while the data sheets show 49 to 50 dB at 1 metre, so compare it with other brands at 1 metre
Which Should You Choose?
Choose Chromagen if...
- Quiet operation matters to you (48dB vs 49dB)
Choose Emerald if...
- You want a lower upfront cost (from $2,750 vs $2,800)
- You want the best efficiency and lowest running costs (COP 5.2 vs 3.5)
- You want a longer tank warranty (7 years vs 5 years)
- You want lower annual running costs (~$228/yr vs ~$338/yr)
Buying in Victoria? Stack up to $2,700 in rebates
Whichever brand you pick, Victorian households can stack the Solar Victoria Hot Water Rebate ($1,000-$1,400), the Victorian Energy Upgrades discount ($500-$2,000), and federal STCs ($500-$1,200) ahead of the 1 March 2027 gas ban deadline.
Heat pump guides
- Every Australian heat pump rebate, with the dated changes
- The best heat pump hot water brands in Australia
- Heat pump hot water cost in Australia
- Victoria heat pump rebates
- New South Wales heat pump rebates
- Queensland heat pump rebates
- South Australia heat pump rebates
- Australian Capital Territory heat pump rebates
- Western Australia heat pump rebates
- Tasmania heat pump rebates
- Northern Territory heat pump rebates
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