Kronoterm Cloud app · iOS / Android

Full system control from your phone. Set water temperature, schedule modes, view live status and historical energy use. Account supports multiple buildings — useful for second homes or rental properties.

Off-peak tariff scheduling

Heats the tank during the cheapest electricity windows — Octopus Go, Cosy, Agile, or any time-of-use tariff. Saves about £560 per year versus running on an immersion heater.

Solar PV diverter

When your panels are making surplus power, the Essenta uses it for hot water before exporting to grid. Variable-speed inverter matches PV output in real time. Free hot water on sunny days.

Anti-legionella cycle

Runs an automatic high-temperature flush periodically. The immersion element supports the heat pump for these cycles — meets HSE guidance for stored hot water.

Holiday mode

Drops the tank to a low maintenance temperature when you’re away. One tap on the app. Returns to schedule when you come back.

CleverBloom can help

Setting up the tariff schedule, matching it to your solar PV, and configuring anti-legionella timing is something we’ll walk through at install — or any time after.

1 · Heat pump module (top)

The heat pump itself sits at the top of the cabinet. Small compressor, evaporator, and condenser pull heat from the surrounding air and pass it into the water tank below. About 75% less electricity than a traditional immersion heater for the same hot water.

2 · 300 L stainless steel tank

The water store. 300 L capacity at 55°C means 1,000+ L of usable hot water per day with reheat. Stainless steel inner tank with high-spec foam insulation. Mains-pressure delivery to taps.

3 · Heat exchanger coil

A long coiled heat exchanger runs through the water tank. Refrigerant in the coil gives up its heat to the water around it. The water never mixes with the refrigerant.

4 · Electric immersion backup

A small electric element provides backup heat during peak demand, recovery after running out, or weekly anti-legionella cycles (65°C). Normally only runs as a top-up — the heat pump does most of the work.

5 · PV-ready inverter

The compressor uses a variable-speed inverter that can match available solar PV generation in real time. When your panels are making 1 kW, the Essenta uses 1 kW. Free hot water on sunny days.

6 · Smart controller + cloud

Wi-Fi enabled controller schedules charging on cheap-rate tariffs, prioritises solar PV, runs anti-legionella cycles, and provides a phone app for monitoring. Connects to Kronoterm cloud for remote diagnostics.

7 · Air flow options

Five install configurations for the air flow — can pull air from the room and exhaust back to the room (room ventilation), or duct air in and out of the cabinet from elsewhere in the house. Removes the cooling-the-room concern for tight utility spaces.

8 · CleverBloom can help

Choosing the air-flow configuration, the right tariff schedule, and integration with existing PV or future heat pump is a design conversation we have during the site visit.

Manufacturer warranty

Kronoterm warrants the heat pump and tank per their current published policy — available at quotation. Real-world product life is around 15–20 years for the heat pump, longer for the tank.

Air-filter cleaning

If the unit is in a dusty space (garage, cellar), the air intake filter needs an occasional clean — just a vacuum once or twice a year keeps performance high. The controller flags it when needed.

Anti-legionella runs automatically

The unit raises tank temperature to 65°C once a week to kill any bacteria that might develop in the stored water. No homeowner action needed; the cycle runs at off-peak times.

No refrigerant top-ups

The unit is sealed at the factory with natural refrigerant (propane). No refrigerant maintenance needed during normal life. If a fault ever occurs, only a refrigeration-qualified engineer can open the circuit.

Cloud monitoring

The Kronoterm app shows real-time tank temperature, energy use, and any error codes. Owners can adjust schedules and target temperatures remotely. The data also helps CleverBloom diagnose issues quickly if anything ever needs attention.

European manufacturer support

Kronoterm has been making heat pumps for 50 years. Spares and warranty work come from the European service network. CleverBloom handles UK design, installation, and project coordination.