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How heat pumps work, one tip at a time, written by the people who design and build them in Abano Terme since 2006. No jargon: every technical term is explained, every figure comes from our own units.

Templari heat pump in the snow at dawn, next to a house
Three phase or single phase heat pump: which to choose and what supply you need

Three phase or single phase heat pump: which to choose and what supply you need

Kita X propane monobloc air-to-water heat pump installed next to a modern house
Fan coils with a heat pump: when to choose them, what water temperature they need and how they cool

Fan coils with a heat pump: when to choose them, what water temperature they need and how they cool

Pompa di calore aria-acqua a R290 Templari
Heat pump backup heater: when it switches on, how much it uses and when it is a warning sign

Heat pump backup heater: when it switches on, how much it uses and when it is a warning sign

Pompa di calore aria-acqua a R290 Templari
Heat pump not heating or using too much electricity: the real causes and what to check

Heat pump not heating or using too much electricity: the real causes and what to check

Pannello touch K-Touch del sistema HCC a parete in un soggiorno
How to balance radiators for a heat pump: flow, valves and the right water temperature

How to balance radiators for a heat pump: flow, valves and the right water temperature

Pompa di calore aria-acqua a R290 Templari
Ground source vs air source heat pump: running costs, lifetime and system cost compared

Ground source vs air source heat pump: running costs, lifetime and system cost compared

Pompa di calore aria-acqua a R290 Templari
Heat pump with ice, steam or water underneath: what is normal and when to call for service

Heat pump with ice, steam or water underneath: what is normal and when to call for service

Kita X propane monobloc air-to-water heat pump installed next to a modern house
How long do heat pumps last: years of service, what wears out and what makes them last longer

How long do heat pumps last: years of service, what wears out and what makes them last longer

Pompa di calore aria-acqua a R290 Templari
Heat pump or pellet boiler: efficiency, space, fine dust and maintenance compared

Heat pump or pellet boiler: efficiency, space, fine dust and maintenance compared

Kita X propane monobloc air-to-water heat pump installed next to a modern house
Heat pump installation: where to put it, what you need and how it is done, step by step

Heat pump installation: where to put it, what you need and how it is done, step by step

Pompa di calore aria-acqua a R290 Templari
Cooling with a heat pump: underfloor or fan coils, how efficient it is and what you need

Cooling with a heat pump: underfloor or fan coils, how efficient it is and what you need

Kita X propane monobloc air-to-water heat pump installed next to a modern house
High temperature heat pump: up to 70 °C, how much more it uses and when you really need it

High temperature heat pump: up to 70 °C, how much more it uses and when you really need it

Pompa di calore aria-acqua a R290 Templari
Heat pump noise: how many decibels, how far from the neighbours and why it is louder in winter

Heat pump noise: how many decibels, how far from the neighbours and why it is louder in winter

Templari air-to-water heat pump with the hot water cylinder next to it, the whole unit with the logo
Heat pump buffer tank: is it needed, which type, what size and which to avoid

Heat pump buffer tank: is it needed, which type, what size and which to avoid

Templari air-to-water heat pump in front of a house in the snow
Heat pump in cold weather: down to what temperature does it work? Below freezing, at -20 and -25 °C

Heat pump in cold weather: down to what temperature does it work? Below freezing, at -20 and -25 °C

Kita X propane air-to-water heat pump by Templari next to a house, the whole unit with the logo on the side
Heat pump in an old house: it can be done, even with radiators, if you know what it will use

Heat pump in an old house: it can be done, even with radiators, if you know what it will use

Pompa di calore aria-acqua a R290 Templari
Heat pump heating curve and weather compensation: what it is, why it is set 5 degrees too high, and how to do without it

Heat pump heating curve and weather compensation: what it is, why it is set 5 degrees too high, and how to do without it

Pannello touch K-Touch del sistema HCC a parete in un soggiorno
Heat pump controls: thermostats, underfloor cooling and fan coils under one system

Heat pump controls: thermostats, underfloor cooling and fan coils under one system

Templari air-to-water heat pump next to a house in Switzerland, with snow on the lid and a low winter sun
Best air source heat pump: the 10 things to check before you buy

Best air source heat pump: the 10 things to check before you buy

Two indoor units of the Kita Air air-to-air heat pump hung on the pillars of a warehouse
Air to air heat pump: how it works, pros and cons, and when it makes sense for heating

Air to air heat pump: how it works, pros and cons, and when it makes sense for heating

Air-to-water heat pump next to a house in Switzerland, with snow on the lid and the fan clear
Heat pump maintenance and servicing: what to do, how often, and how long a heat pump lasts

Heat pump maintenance and servicing: what to do, how often, and how long a heat pump lasts

Propane air-to-water heat pump running in snowfall, with snow on the lid
Heat pump COP: what it is, how it is measured, and why it is not the same in the fog

Heat pump COP: what it is, how it is measured, and why it is not the same in the fog

Kita X propane monobloc air-to-water heat pump installed next to a modern house
Hybrid boiler and hybrid heat pump: what they really are, and why we do not make them

Hybrid boiler and hybrid heat pump: what they really are, and why we do not make them

Heat pump next to the solar panels on the roof of Templari's headquarters in Abano Terme (Padua)
Heat pump and solar panels: how much the roof really covers, month by month, and how to make them work together

Heat pump and solar panels: how much the roof really covers, month by month, and how to make them work together

Stone house in Latvia with solar panels on the roof and a propane air-to-water heat pump by the wall
How much electricity does a heat pump use: per day, per year and by size, with the data sheet figures

How much electricity does a heat pump use: per day, per year and by size, with the data sheet figures

Two Templari air-to-water heat pumps along the wall of a house in the snow
Heat pumps and radiators: does it work? Yes, and better with propane

Heat pumps and radiators: does it work? Yes, and better with propane

Pompa di calore aria-acqua a propano R290 Templari
Rated and useful capacity: how much a heat pump heats when it is cold

Rated and useful capacity: how much a heat pump heats when it is cold

Pompa di calore aria-acqua a R290 Templari
R290 heat pump: what is inside a propane air-to-water unit

R290 heat pump: what is inside a propane air-to-water unit

Kita Air indoor units in a production building
Warehouse heating: how many kW to heat an industrial building and how it is calculated

Warehouse heating: how many kW to heat an industrial building and how it is calculated

Unità interna Kita Air in un'officina meccanica
How does a heat pump work: heat is not produced, it is moved

How does a heat pump work: heat is not produced, it is moved

Kita Air outdoor units along the front of an industrial building
Air conditioner vs heat pump: not the same machine

Air conditioner vs heat pump: not the same machine

Scroll compressor of a Templari heat pump
Rotary vs scroll compressor: what it tells you about the heat pump in front of you

Rotary vs scroll compressor: what it tells you about the heat pump in front of you

Timber house with a Templari air-to-water heat pump
The energy optimiser: the walls of the house as a battery

The energy optimiser: the walls of the house as a battery

Templari heat pump control panel in a home
Heat pump short cycling: a heat pump is not a boiler and has to run without stopping

Heat pump short cycling: a heat pump is not a boiler and has to run without stopping

Pompa di calore aria-acqua Templari appena installata
Heat pump sizing: an inverter heat pump is sized to run at half capacity

Heat pump sizing: an inverter heat pump is sized to run at half capacity

Templari air-to-water heat pump in front of a house in the snow
Heat pump defrost mode: timed or on demand, when the unit decides to stop

Heat pump defrost mode: timed or on demand, when the unit decides to stop

Kita Air outdoor unit against the wall of an industrial building
Heat pump defrost cycle: the first thing to look at is the space between the fins

Heat pump defrost cycle: the first thing to look at is the space between the fins

Kita X propane monobloc air-to-water heat pump installed next to a modern house
Heat pump for a flat: can you have one without an outdoor unit? What goes outside and what goes indoors

Heat pump for a flat: can you have one without an outdoor unit? What goes outside and what goes indoors