13 August 2024
|
Commercial heat pump manufacturer Clade Engineering explores the details of retrofitting heat pumps in commercial settings, with guidance designed to help businesses make an informed decision.
What is a heat pump retrofit?
Put simply, retrofitting a heat pump involves upgrading or supplementing your current heating system with a heat pump. This can be done in most buildings, including commercial, residential, and industrial properties, with air source heat pumps being especially popular due to their lower costs and straightforward installation process.
Is my building suitable?
There are a number of factors to consider when deciding whether to retrofit a heat pump into a commercial building, and thankfully, the age of a building isn’t too much of an issue. Older buildings can definitely be retrofitted with heat pumps; the key is selecting the right type of heat pump and refrigerant that aligns with the building’s characteristics, and the owner’s goals.
When it comes to retrofitting, a building’s insulation is important; good insulation that effectively reduces heat loss means only a smaller, more efficient heat pump would be needed. While heat pumps can be sized to meet any heat demand, a building with better insulation would result in lower operational costs of a heat pump system.
Depending on your current heating system, you might be able to reuse existing pipework. That being said, radiators might need resizing or replacing, particularly if the heat pump operates at lower temperatures than your old boiler system.
These are just a few of the considerations around building suitability, but it’s a good place to start when thinking about whether or not you can retrofit a heat pump.
The installation process
The retrofit process starts with a system designer conducting heat loss calculations to determine your building's heating needs. They’ll then design a bespoke solution to meet these requirements with minimal disruption. Opting for a refrigerant with a temperature differential close to that of traditional boilers, like R290 (propane), can make the retrofit smoother.
Benefits of retrofitting heat pumps
- Efficiency and cost savings
Heat pumps are incredibly efficient, often achieving a Coefficient of Performance (COP) between 3 and 5. This means they can produce three to five times more heat than the electricity they consume. In contrast, gas boilers usually operate at around 80% efficiency.
Even though electricity is more expensive than gas, the efficiency of heat pumps can lead to significant savings on energy bills. You can further reduce costs by using renewable energy sources, like solar power, to run the heat pump.
- Environmental impact
Switching to a heat pump can drastically reduce your business’s carbon footprint. Even though much of the UK’s electricity still comes from fossil fuels, the growing share of renewable energy in the National Grid boosts the environmental benefits of heat pumps.
Choosing the right refrigerant is also an important step. Natural refrigerants like R290, for instance, don’t contribute to climate change, ozone depletion, or release harmful PFAS chemicals, making them an environmentally friendly option.
- Longevity and future-proofing
Heat pumps typically last 15 to 20 years, outliving traditional boilers that usually last 10 to 15 years. Using natural refrigerants ensures compliance with future environmental regulations, protecting your investment from becoming obsolete due to regulatory changes.
- Flexibility
Heat pumps are versatile. They can provide both heating and hot water and work well with various emitters at low surface temperatures, enhancing comfort and efficiency.
Conclusion
Retrofitting a heat pump offers a host of benefits for businesses, from increased efficiency and cost savings to environmental sustainability and future-proofing. The process can be straightforward, especially with the right system designer and refrigerant choice. With available financial assistance and the potential for significant long-term gains, retrofitting heat pumps is a smart investment for businesses looking to upgrade their heating systems, and a step in the right direction for the country’s goals to protect and preserve the environment.
