Heat Pump air Conditioners
Delta T has established a reputation for service and reliability with its entire client base for the design, supply and installation of heat pump air conditioners.
A Heat Pump system can significantly increase the value of a property in exactly the same way that other types of home improvement will. However it is very important to ensure that this increased value is maintained in terms of the future performance of the Heat Pump system.
Obviously maintenance of the Heat Pump is important, but because the Heat Pump is refrigeration based piece of equipment it is easy to understand that the maintenance demands will be much less than a comparable boiler system.
There are three main types of air source Heat pumps which give great flexibility of choice and features:
- Air Source Heat Pumps...Heating only.
- Air Source Heat Pumps...Heating and Cooling.
- Air Source Heat Pumps...Heating and Cooling and Domestic Hot Water.
As Air Source Heat Pumps simply move energy rather than creating it by burning fossil fuels, they are extremely efficient. For every 3kW of heat moved into the house by the heating pump, only 1kW of electricity is consumed. This gives an efficiency of performance by air source pumps of 300%, sometimes stated as a Co-efficient Of Performance (COP) of 3:1 this is a huge improvement on boilers which have only around 75% to 80% efficiency rates over their lifespan truly demonstrating the advantages of heat pumps.
Heat pumps are extremely reliable with no regular maintenance required. On average Heat Pumps have a planned life span of 25 years with no loss of efficiency which again demonstrates one of the many advantages of heat pumps especially when compared to boilers which can lose up to 2% efficiency for each year of operation and have a usable life span of only around 12 years. An air source heat pump makes no more noise than a domestic dishwasher.
Heat pump air conditioners are ideal for both domestic and commercial properties, Heating a home accounts for more than 60 per cent of a home's energy cost which makes them the best place to look for savings with spiralling energy cost.
An air source heat pump system can help to lower your carbon footprint as it uses a renewable, natural source of heat – air. The amount of CO2 you'll save depends on the fuel you are replacing. For example, it will be higher if you are replacing electric heating than natural gas.
All of our heat pumps can be used for both new builds and homes undergoing a refurbishment, whether it is an air to air heat pump for domestic heating in a single room or an air to water heat pump for heating your whole house or swimming pool, there is rarely any need to make any major changes to your house for the installation of a Heat Pump.
An air source heat pump is the simplest and least expensive renewable energy system to install. It's a stand-alone unit which can be placed outside your premises. Air source heat pumps don't require any digging or underground pipe work. Most domestic units are roughly the size of an air conditioning unit. An air source heat pump draws heat from the outside air. It will provide 100% of your heating and hot water, even when the outside air temperature is well below zero.
How do they work?
What's sometimes difficult to grasp about the heat pump air conditioner is that the initial heat taken from the air is not as hot as that which comes out at the other end. So why's it called a heat source?
The Evaporation process
Refrigerant liquids boil at very low temperatures, typically minus ten degrees.
A heat pump system contains refrigerant in its pipes and coils. When water or air is passed over these pipes and coils the refrigerant boils and turns into vapour.
The Compression cycle
Next, the vapour is compressed. It is a basic law of physics that when a vapour is forced to occupy a smaller space its temperature increases. In this case, the vapour will reach a temperature of between 75 and 125 degrees.
The Condensing process
Now the pressurised hot vapour is passed to a condenser or heat exchanger coil similar to your car radiator. It's like steam escaping out of a kettle and hitting a metal plate. The plate heats up. This is the heat that is used to heat your home and hot water system.
The Expansion process
Finally, the cooled vapour which has had some of its heat removed is passed through an expansion valve this allows the pressure to decrease. As the pressure decreases, the vapour reverts to its liquid state, ready to start the whole process again.
As if that isn't enough, heat pumps can be reversed to provide cooling on hot days in the summer. These are called rather aptly reverse cycle heat pumps. A modern reverse cycle heat pumps runs as quietly as a desktop fan. At as low as 28 decibels, it's quiet enough to hear a pin drop.
Call our friendly help desk now or e-mail us via the request a quotation page with your details and we will contact you shortly.