Heat Pumps

Heat Pumps

EWC has vast experience in the provision of energy saving Heat Pumps for both new and existing homes and commercial buildings.

Heat pumps form part of a grant-assisted, retrofit ‘package’ available from EWC to householders and business owners.

Grant aid – €3,500, is also available for Heat Pumps installed independently of other retrofit options.

Air Source Heat Pump

How it Heats a Building

The heat pump takes in heat from the air, even at very low temperatures and uses it to heat your water, radiators or underfloor heating systems.

How it Works

The pump pulls in warm air through a fan which sends it to a heat exchanger in the unit. The heat exchanger contains a refrigerant or heat transfer fluid.

The heat from the air is transferred to the refrigerant which begins to boil and turn into a gas. This gas is then fed into a compressor.

In the compressor, the pressure of the refrigerant gas is increased, which makes the temperature of the gas rise. The hot refrigerant gas then pours into a second heat exchanger, where it heats the water, up to 60 degrees, for distribution as space heat and hot water, throughout the building.

Benefits

• Reduces your carbon footprint
• Increases comfort levels due to constant, comfortable ambient temperature
• Replaces the need for gas or oil heating
• Is relatively cheap to purchase and install
• Reduces your energy consumption and heating bills
• SEAI grant approved
• When combined with solar PV panels, running costs are reduced significantly

Ground Source Heat Pump

How it heats a building

Heat from the sun and rain is absorbed into the earth, giving the ground a temperature (around the year) of 8-12 degrees Celsius.

A heat pump takes the heat from the ground and carries, concentrates and releases it inside your home or building to heat your water and your living space.

How it Works

Energy absorbing liquid collects heat from the ground which is pumped into a unit with a heat exchanger.  The heat exchanger contains a refrigerant or heat transfer fluid.

The heat from the earth is then transferred into the refrigerant which begins to boil and turn into a gas. This gas is then fed into a compressor.

In the compressor, the pressure of the refrigerant gas is increased, which makes the temperature of the gas rise. The hot refrigerant gas then pours into a second heat exchanger, where it heats the water for distribution as space heat and hot water, throughout the building.

Benefits of a Heat Pump

• Reduces your energy consumption and energy bills
• SEAI grant approved
• 1KW of electricity generates 4 KW of renewable heat throughout the year
• Used in conjunction with solar PV system, running costs are reduced to a minimum
• Decreases need for greenhouse, gas emitting fossil fuels