Exploring the feasibility of heat pumps for older residences: insight from industry professionals
In the quest for energy efficiency and sustainability, heat pumps have emerged as a promising solution for heating homes, especially older apartments. The misconception that heat pumps and radiators don't work well together is not always accurate.
Experts recommend several measures to optimize heat pump performance in older apartments. Improving the building's insulation, such as upgrading windows, doors, and facade insulation, is crucial. A hydraulic balancing of the heating system and adjusting the heating curve can also help optimize the heat pump's efficiency. Often, existing radiators are sufficient, and a forward flow temperature up to 55°C is ideal for efficient heat pump operation in old buildings.
Addressing damp issues and general repairs in older homes is important as they can contribute to heat loss. It's also beneficial to pay extra attention to insulating windows in older homes, and various solutions like secondary glazing, shutters, thermal blinds, and curtains can enhance insulation.
It's essential to note that every building is unique, and a thorough assessment and testing are required to determine the best heating solution. Heat pumps are suitable for nearly every home, according to Hamid Salimi of Daikin.
Hybrid heat pumps, which combine a gas boiler and a low carbon heat pump, can be another option for homes with gas heating and a combi boiler. These systems can be used with existing radiators and don't require a tank. Making all home improvements at once is not necessary for installing a heat pump.
An Energy Performance Certificate (EPC) may underestimate the thermal efficiency of old buildings. Thus, getting a proper heat loss assessment is important for older properties to ensure running costs are minimized and the house stays warm.
Homeowners should consider the true cost of a hybrid heat pump versus the benefits of a high-temperature heat pump. While the gas standing charge remains the same with a hybrid system, the long-term energy savings and reduced carbon footprint could outweigh the initial investment.
In older homes with traditional radiators, a high-temperature heat pump may be necessary to maintain warmth and is more energy-efficient than a fossil fuel boiler. The flow temperature of a heat pump can be adjusted, even years down the line, to accommodate changes in the home or radiator size.
In conclusion, heat pumps offer a viable solution for heating older apartments, providing energy efficiency, comfort, and cost savings. With the right measures and a proper assessment, older homes can be transformed into warm, energy-efficient living spaces.
