Breaking free from gas: the «boiler + heat pump + buffer» hybrid
Switching away from gas in one step is expensive and risky. We explain how a hybrid system lets you reduce gas dependency gradually, at your own pace.
Rising gas prices and the desire for energy independence are pushing Ukrainians toward heat pumps. But fully replacing a boiler with a heat pump means a large investment and the risk of falling short in peak cold spells. The smarter path is a hybrid system.
How it works
A heat pump covers the base load for the majority of the season, when outdoor temperatures are between +10 and −5 °C — the range where it is most efficient. During severe frosts or peak demand hours, a gas or electric boiler kicks in. The controls automatically select the cheapest heat source.
The role of the buffer tank
The buffer accumulates heat, smooths out the heat pump's operating cycles, and prevents the sources from conflicting with each other. All consumer circuits connect to the buffer via a distribution manifold with pump groups.
Why this suits a gradual transition
You can start with a boiler and piping, then add the heat pump later — a hydraulic layout based on a Termojet hydraulic separator or buffer tank is already prepared for this. You reduce gas consumption as far as your budget allows, without a complete overhaul of the boiler room.
Keeping the heat exchanger clean
For long-term efficiency of the heat pump's heat exchanger, install a magnetic separator — it will keep the system performing at its best for years to come.
