Earlier this year we renovated our house and used the opportunity to revamp our heating and hot water systems.
We live in a rural village where there is no access to mains gas, so the house and the water were heated using an oil (kerosene)-fired boiler.
Our house is a modern (for the UK) detached property, with wall and roof insulation. Windows are double-glazed throughout. While undertaking the alterations, we discovered that there is no insulation under the floors – one explanation for the cold tootsies in winter.
As we both work from home, we needed a system that would keep the house warm during the day and in the evenings, but would cost less to run than the old oil-based system.
Our new system was planned using the premise that we’d generate our own energy or use renewable energy sources where possible, and that we’d minimise our use of fossil fuels. It was also designed to make us independent of oil.
The wood-burning stove was the first item to be installed and significantly improved our quality of life during the recent long, chilly winter.
We have installed two solar thermal panels that heat our water during daylight hours. An air-to-water heat pump boosts the water temperature, when necessary, on cloudy days. Hot water is stored in a large (250 litre), highly insulated, dual coil cylinder. A bonus of the new system is that we now have mains pressure water for our showers and taps and have been able to remove the header tank in the loft.
The air-to-water heat pump also heats our home via radiators. As this system runs at a lower temperature than the traditional oil-based system, radiators with larger surface areas had to be installed. Photovoltaic (PV) solar panels were fitted to generate some of the electricity required to run the heat pump. We import electricity from the grid to supplement what we generate from the PV panels.
We are now independent of oil and so will soon say goodbye to the ugly oil tank in the garden. We no longer have to juggle the timing of oil deliveries against the oil level in the tank and fluctuating (usually rising!) oil prices.
The installation is complete and I’ll keep you posted on our experience with the new system over the next few months.