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The British Business Guide to Maximizing Heat Pump Efficiency and Minimizing Costs
Tired of rising energy bills and complicated heating systems? You’re not alone. At CO2PEC we’ve helped businesses and public sector organisations make the switch to low-carbon technologies that are not only efficient but also add real value. One of the most frequent topics we discuss is a crucial one: how to understand and control the long-term running costs of Air Source Heat Pumps (ASHPs), Ground Source Heat Pumps (GSHPs) & Water Source Heat Pumps (WSHPs).
While the long-term savings from switching to natural refrigerant heat pumps are compelling, especially when replacing old fossil-fuel-based systems, it’s important to understand that the operational cost of a heat pump is never one-size-fits-all. In fact, there are a few major factors that determine how much you’ll spend on heating and hot water:
- Heat losses of the building fabric
- Heating & hot water demand
- Efficiency of heat pumps & emitters
In this blog we shall dive into these topics, giving you practical tips to optimise your system’s performance and cut down on electricity use. You’ll learn how to get the most out of your investment while benefiting from durable & British-made heat pump technology, all backed by our expertise.
What Drives Heat Pump Running Costs?
- Building Fabric: What Improvements Can I Make?
It’s key to always take a fabric first approach, looking at ways to reduce the energy consumption needed to heat or cool your building:
- Upgrades to insulation
- Window improvement or replacement
- Shading & Ventilation Enhancements
Once the fabric has been assessed, we can then accurately calculate the output required for your new heat pump.
2. Heat Demand: How Much Heat Does Your Building Need?
The heat demand of a commercial or public sector property is influenced by several variables, including:
- Insulation Values (U-Values) & air tightness
- Internal Volume
- Target indoor temperatures during operating hours
For example, a small office block with moderate heating needs will cost significantly less to run than a large care home requiring consistent 24/7 warmth.
To get it right, included in the feasibility study will be a customised heat loss assessment for every single project. This isn’t a one-size-fits-all approach; we calculate the perfect size for your heat pump. This way you won’t end up with a system that’s too big, wasting electricity or one that’s too small, leaving you with an inefficient environment.
3. System Efficiency: Coefficient of Performance (CoP)
How efficient are these things? Well, a heat pump’s efficiency is measured by its Coefficient of Performance (CoP). Think of it as a scorecard that shows how much energy your heat pump creates for every single unit of electricity it uses. A modern system usually has a CoP of around 3 to 4 under normal conditions, however, this can change depending on a few key factors:
- The type of heating system: Underfloor heating allows heat pumps to run at lower temperatures improving efficiency & therefore CoP
- Building insulation: Heat lost through poorly insulated walls, roofs or floors makes your system work harder, reduces efficiency & therefore lowers CoP
- Window performance: Single-glazed or poorly sealed windows can compromise energy savings.
- Heat Pump Placement: Units exposed to high winds or poor airflow can struggle to perform efficiently.
Choosing a heat pump is a big decision and it’s important to know you’re getting the right advice & a system that can handle the UK’s unique climate. That’s why we’re proud to supply British-made heat pumps that are specifically designed for our weather, this means you get a system that not only offers superior performance and durability but is also perfectly tailored to your needs with our expert design and installation services.
Six Ways to Lower Electricity Costs
While heat pumps are inherently efficient, maximising savings requires smart system use and good building practices. Here are six strategies CO2PEC regularly recommend to our clients:
1. Building Fabric Upgrades
Before determining your system output, the first step is to reduce the building’s heating & cooling demand by upgrading your insulation or windows to keep your building comfortable all year long. By maintaining a steady temperature and eliminating fluctuations, you reduce your heat pump’s workload and its electrical consumption. Less work means less energy
2. Set Water Flow Temperatures Lower
Reducing the target flow temperature for space heating can make a significant difference to your system’s CoP. We design our systems to work effectively at lower temperatures especially when paired with FCU’s, underfloor heating, high efficiency radiators with weather compensated flow temperatures.
3. Annual Maintenance Should Not Be Overlooked
A natural refrigerant heating system is only as good as its maintenance. Dust & leaf buildup on the evaporator/condenser or blocked filters will reduce efficiency over time. We recommend a full annual service and depending on site conditions, an interim service too. CO2PEC are here to support you with your ongoing service contract.
4. Avoid Constant Thermostat Adjustments
Frequent temperature changes force your system to ramp up and down unnecessarily, a steady & consistent setting allows the heat pump to work efficiently and maintain comfort without costly spikes in energy use. This issue can be overcome with one of our bespoke BMS systems or simple lockable controls.
5. Keep Windows Closed During Heating Hours
Especially in schools and offices it’s tempting to open a window, but doing so can dramatically reduce efficiency. The best solution is zoning or individual temperature control.
MVHR, (Mechanical Ventilation with Heat Recovery) is also a great addition to any building as this negates the need to open any windows and lowers the heat pump output required to heat your building.
6. Install Underfloor Heating Where Viable
Underfloor heating is arguably the best partner for a heat pump as it can provide a consistent variable (weather compensated) warmth. Not only does it boost comfort, but it also reduces the energy needed to reach your target temperature. We regularly design & integrate systems that pair heat pumps with underfloor heating to achieve the best possible performance. In fact, underfloor heating can be around 40% more efficient than traditional radiators!
Government Grants and Support
Switching to a low-carbon heating system in the UK has a major advantage: various government support schemes are available to help with the costs. While we can’t apply on your behalf, we’re happy to help you navigate the process.
We can provide advice & accurate technical specifications for your British-made (or any other heat pump) solution that qualifies for schemes like these:
- Public Sector Decarbonisation Scheme (PSDS) – Offers capital funding for schools, hospitals, councils and other public bodies to decarbonise their heating.
- Boiler Upgrade Scheme (BUS) – Provides up to £7,500 for eligible commercial or domestic installations.
- Local authority and business grants – Additional funding may be available at the regional level, especially for retrofit projects.
If you’re ready to explore these options, we can support and help you understand exactly what’s needed for your application.
Why Choose a British-Made Heat Pump — and CO2PEC?
Our focus on British-made ASHP systems is a source of pride for us at CO2PEC and it brings real value to our clients. These systems are not just engineered for the UK’s specific climate; they also come with the huge advantages of shorter lead times, readily available parts if ever required, and reliable warranty UK based support. Also, by opting for British manufacturing you’re helping to boost the UK economy and support local jobs.
But our job isn’t done once your new system is installed as we offer comprehensive, end-to-end project support. We are with you every step of the way, through the initial feasibility study and heat loss calculations, to technical design, professional installation, support and reliable aftercare. This tailored approach ensures your building’s unique needs are met, giving you a solution that’s built to last and performs exactly as it should, meaning you will have one less thing to worry about & only one call to make!
Final Thoughts
While running costs for commercial heat pumps can vary, with the right design and regular upkeep they deliver significant lifetime energy and carbon savings compared to old & polluting fossil fuel systems.
If you are considering an upgrade, retrofit or just want to explore how you can cut down on heating bills while helping the environment, we’re here to help.
Get in touch with our team for some expert advice tailored to your needs. You can email us at enquiries@co2pec.com or give us a call on 01753 905675.
