HEAT PUMPS
lengths to mitigate any risks. As with any other refrigerant, propane needs to be used safely and handled by appropriately qualifi ed engineers.
Our PRM and PRG heat pumps both feature R290. Both
are multi-functional and able to provide higher output temperatures and hot water up to 75ºC. All units are rigorously tested to ensure they are safe. Their thermodynamic properties, combined with overall effi ciencies and low GWP, can reduce emissions and help on the path to net zero.
The market for heat pumps in commercial buildings covers
an extensive range of applications that includes hospitals, universities, airports, retail buildings, supermarkets and offi ces, as well as industrial and processing applications – the latter may require more bespoke solutions. Why invest in propane heat pumps? The provision of optimal heating and cooling that can minimise environmental impact is a compelling reason, as is their suitability for a wide range of applications. Their energy effi ciency properties can result in lower energy usage, which can also impact the running costs and maintenance, further adding to cost savings.
TEWI Now we all know about GWP and Ozone Depleting Potential (ODP), but what about TEWI? Using the TEWI (Total Equivalent Warming Impact) methodology, which is a valuable aid that enables calculation of new stationary refrigeration and air conditioning systems at their design stage, designers and operators of equipment can compare the impact on the environment of the various
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options available to meet the desired HVACR requirements. Where ‘Direct Impact’ emissions are those aff ected by
refrigerant leakages, and ‘Indirect Impact’ emissions are those aff ected by energy effi ciencies: TEWI = Direct Impact + Indirect Impact emissions By assessing the environmental impact of products, businesses can make informed decisions about their planned cooling strategy. Although cost is a factor with budgets stretched, no project should be based on just the initial cost. Projects need to consider system sizing, EER and SEER ratings, overall energy consumption, maintenance, repairs and a life- cycle cost analysis that will indicate long-term savings and total cost of ownership.
Investing in a high-performing product for your cooling and heating infrastructure project off ers environmental benefi ts as well as energy effi ciency. They are also in alignment with demands for solutions that provide natural, non-toxic refrigerants with a low ODP. Heat pumps operating with R290 refrigerant off er a low- carbon technology that can reduce costs as well as emissions. They can also be retrofi tted without expensive modifi cations to a building’s infrastructure, which can help reduce installation costs.
With increasing awareness of global warming and the
environmental impact, demand for sustainable heat pump technology will continue to grow. Most manufacturers off er a propane option. The European market, Australia and New Zealand are ahead of the US in the adoption of propane refrigerants, as they have yet to approve standards and safety codes. There’s little doubt, though, that propane heat pumps are an essential tool in decarbonising indoor spaces.
www.acr-news.com • November 2025 25
"The UK is expected to be in alignment as the F-Gas regulations here are denoted as ‘retained EU law’,
which means that the
requirements remain the same as under EU legislation."
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