The term ‘Heat Pumps’ actually refers to a group of technologies that can incorporate the HVAC (heating, ventilation, and air conditioning) devices which always provide heat energy which is then transferred from a source of heat or warmth to a destination that is called as a heat sink, effectively ‘pumping ‘warmth from one place to

1. HEAT PUMP
INSTALLATION

2. INTRODUCTION
The term ‘Heat Pumps’ actually refers to a group of technologies that can incorporate
the HVAC (heating, ventilation, and air conditioning) devices which always provide
heat energy which is then transferred from a source of heat or warmth to a
destination that is called as a heat sink, effectively ‘pumping ‘warmth from one place
to another.
Heat pumps would move thermal energy in the opposite direction of natural heat flow
just by absorbing heat from a cold space and releasing it to a warmer space. Their
most important purpose is to space heating through radiators, underfloor heating
systems, or warm air convectors, they can also be used in order to heat water for use
in your home or business.

3. How does a Heat
Pump Work?
Cooling Mode
Heating Mode
Heat pumps work in two modes, below are
the details for both of these modes:

4. HEAT PUMP IN COOLING MODE
First of all the liquid
refrigerant is basically
pumped via an expansion
device that is there at the
indoor coil, which is
basically functioning as
an evaporator. All the air
from inside your entire
house is blown across
these coils, where heat
energy is absorbed by the
refrigerant.
STEP 1 After that these gaseous
refrigerants will then pass
through a compressor, which
actually pressurizes the gas.
This process of pressurizing
the gas would cause it to
heat up it is a physical
property of compressed
gases. This hot, pressurized
refrigerant will then move
through the system to the
coil to the outdoor unit.
STEP 2
A fan that is there in the
outdoor unit would move
outside air across the coils,
which is serving as condenser
coils basically in the cooling
mode. Just because of the
reason that the air outside your
entire home is relatively cooler
than the hot compressed gas
refrigerant that is there in the
coil, the heat is transferred
from the refrigerant to the
outside air.
STEP 3
The expansion valve would
help in reducing the pressure
of the warm liquid refrigerant,
which will cool it down
significantly. At this stage, the
refrigerant is in a cool, liquid
state and is also ready to be
pumped back to the
evaporator coil in the indoor
unit to start this cycle again.
STEP 4

5. HEAT PUMP IN HEATING MODE
Heating source becomes the
outside air, even when the
outdoor temperature is low, as
well as the heat energy, is
released inside your home. The
coil that is outside now has the
function of an evaporator, and
the indoor coil now has the role
of the condenser.
STEP 1
The physics of this process is the same but the
heat energy is absorbed in the outdoor unit
just by the cool liquid refrigerant, which
would turn it into cold gas. All the pressure is
then applied to the cold gas which would turn
it into a hot gas. This hot gas is then cooled in
the indoor unit just by passing air, heating the
air, and condensing the gas to warm liquid.
The warm liquid is then relieved of pressure
as it would enter the outdoor unit which will
then turn it to cool liquid and renew the cycle.
STEP 2
As a whole, a heat pump is flexible and
efficient in both cooling and heating
system. All the credit goes to a reversing
valve, the heat pump can change the
flow of refrigerant and either heat or
cool a home. Air is blown over an
evaporator coil, which would be
transferring the heat energy from the air
to the refrigerant.
STEP 3

6. The first and foremost important thing for heat pump
installation is to find an appropriate place to place the main
unit.
You would also need a reasonable clearance around the unit
which must be about 200mm for some wall-mounted units,
more for bigger, floor systems.
The whole installation would involve an outdoor section as
well as an indoor section, so you will have to make sure that
there is sufficient space inside as well.
This whole system can then be connected to your indoor
heating systems such as the boiler or radiators.
HEAT PUMP INSTALLATION
REQUIREMENTS

7. Heat Pumps Installation Costs
Here are some of the factors you will have to consider when
reviewing the pricing of heat pump units:
The capacity of a heat pump is measured in tons, and
the typical units on the market would fall between 2
and 5 tons. So finding the perfect size for your home is
really very important. Going for the one that is very
small may require it to run continuously which can
obviously raise your energy bill and wear out the
system. On the other side higher tons can come at
pricier up-front costs.
Size
A lot of these brands offer a range of units at many
different prices starting from cheaper, lower-quality
to expensive, high-quality systems. You will have to
shop around on the market and read all the reviews
for each brand to make sure that you make the best
choice, rather than choosing solely on price.
Brand
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8. Heat Pumps Installation Costs
Hiring an HVAC contractor to help you with your heat
pump installation is really very. Labor costs can differ
which would depend on the heat pump type. For
instance, geothermal units would require more work
in order to install because of the reason that they
need to be buried under at least 4 feet of the ground.
In fact, ductless mini-split heat pumps can cost as
little as $500 for a quick and easy installation.
Installation
This rating is a metric that is used to measure the
efficiency of a heat pump but particularly for how it
heats a home. Typical HSPF ratings on the market
fall between 8.2 and 13, with the higher number
being the most efficient.
Heating Seasonal Performance
Ratio (HSPF)
03 04

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