Owners of private houses know: each heating season can bring an unpleasant surprise in the form of increased payment for heat.
Gas boilers become more and more expensive every year in terms of payments. Electric boilers are generally in first place in terms of costs. And in the summer, to heat the water, have to use a boiler. To be able to relax, we turn on the split system, and I pay, we pay, we pay…
Basic comfort becomes too expensive.
There is an exit: Heat pump – на 100% effective!
The heat pump can be easily integrated into the heating system of an old or new home.
He alone works for heating, water cooling and heating.
Uses alternative energy sources, на 1 kW of consumed electricity outputs to the heating system 3-5 kW of heat.
Does not require approvals and permits. It's offline, easy to manage, durable technology with the best prospects for a wide range of applications.
Because the ground and water heat pumps require specific installation conditions and significantly larger capital investments.
Each implemented energy efficiency project, such as the introduction of a heat pump to heat a home, involves preparation for the effectiveness of all your investments. In this case, a feasibility study is expected (feasibility study) for the heat pump. The feasibility study is based on a set of initial data on the characteristics of the object, climatic data of the installation site, on the analysis of operating modes, degree of automation, economic indicators and tariff data.
One of the economic indicators such justification is the calculation of the payback period of capital investments.
Payback of a heat pump
When it comes to, How long does it take for a person to get their money back?, invested in something, that means how profitable the investment itself was. In the field of heating, everything is quite difficult, as we provide ourselves with the same comfort and warmth, and all systems are expensive, but in this case, you can look for such an option, which would return the funds spent by reducing costs when using. And when you start looking for the right solution, you compare everything: a gas boiler, heat pump or electric boiler.
We'll figure it out, the payback of which system will be faster and more efficient.
The concept of payback, in this case, the introduction of a heat pump to modernize the existing heat supply system, if just, can be explained like this:
– There is one system - an individual gas boiler, which provides autonomous heating and hot water supply. Split air conditioner available, which provides cold for one room. Installed 3 split systems in different rooms.
– And there is a more economical advanced technology - a heat pump, which will heat/cool the house and heat water in the required quantities.
Need to define, how much has the total cost of equipment and start-up costs changed, as well as to assess how much the annual costs of operating the selected types of equipment have decreased. And determine how many years, with the resulting savings, more expensive equipment will pay for itself. Ideally, several proposed design solutions are compared and the most cost-effective solution is selected..
Let's calculate and find out, what is the payback period for a heat pump in Ukraine.
The simplest formula for calculating the payback period when comparing two options is as follows:
Weaving. = K2 - K1 / S1-S2, years
Weaving. = K2 - K1 / S1-S2, years where Tokup., years, – payback period of the proposed capital investments due to savings on current (operational) costs;
K1 and K2, UAH, – capital investments, the cost of equipment and installation in two cases;
K1 and K2, UAH, – capital investments, the cost of equipment and installation in two cases;
S1 and S2, UAH, – the amount of operating costs for the compared projects.
Consider a specific example
- house in 2 floors, well insulated, with total area 150 sq. m.
- Heat distribution system / heating: contour 1 - warm floor, contour 2 – radiators (or fan coil units).
- Installed gas boiler for heating and hot water (DHW), e.g. 24kW, double-circuit.
- Split air conditioning system for 3 rooms of the house.
It is proposed to replace the split system with an air-to-water heat pump Raymer with heating/cooling and domestic hot water functions. Comes with built-in electric heater. I.e, heating becomes completely electric - monoenergetic system, calculated under the tariff for electric heating. For effective air conditioning, it is proposed to install 3 fan coil units.
Suppose, how much does it cost to heat an average house / apartment with an area of 150 square meters with two technologies: gas and heat pump.
Annual heating and water heating costs
1. Boiler option. According to real statistics, for such a house, with economical consumption of heating and water heating, it takes up to 3500 – 3750 m3 of gas. Or at the rate 2017 of the year 6,879 UAH per m3 of gas we receive payments for gas up to 25 796 UAH.
Air conditioning system with power input 0,6 kW, working on 10 hours a day for three summer months, will consume: 0,6 x 10 x 90 = 540 kW, what will it cost 540 x 0,9 UAH / kW = 486 UAH.
For three split systems, respectively, you will need to spend: 486 x 3 = 1456 UAH.
The total cost of heating a modern gas boiler, DHW and air conditioning at home will be:
25796 + 1456 = 27252 UAH. in year.
2. Heat pump option. According to a sufficiently accurate software calculation for the selection and calculation of an air-to-air or air-to-water heat pump, we have the following calculated data for the house 150 m2. The experience of real operation confirms the proximity of the calculated parameters to real numbers.
Predicted performance of the home heating system 150 m2 with heat pump, or how much electricity a heat pump consumes:
| Max. heat output HP for heating, kW | 19993,59 |
| Max. power consumption HP when working for heating, kW | 7283,18 |
Predicted indicators of HP loads on the DHW system:
| Max. DHW heat output, kW | 2133,46 |
| Max. power consumption of the HP when operating on DHW, kW | 866,12 |
Demand for operation of the built-in electric heater at peak loads, according to calculation, when coated with TN 80% all loads, per year, 345 kW.
Operating costs when using HP (projected)
Total energy consumption of the Raymer heat pump:
7283 + 866 + 345 = 8495 kW (x UAH 0.9/kW = 7644 UAH. in year)
*Tariff for electric heating taken into account. The cost of a kilowatt of electricity for the period 2017. at consumption up to 3000 kW∙hour per month accepted 0,9 UAH/kW.
!!! Don't forget: The heat pump complete with installed fan coil units works alone for heating, water heating and air conditioning.
Economic calculation of a heat pump for the implementation of heating systems, air conditioning and hot water supply (DHW)
- Estimated cost of a boiler room with a gas boiler 24 kW (kettle, strapping, wiring, tank, counter, installation) is about 1000 Euro. Air conditioning system (one split system) for such a house will cost about 800 euros. Together with the arrangement of the boiler room, design work, connection to the gas pipeline network and installation work - 6100 euros.
- Approximate cost of Mycond heat pump with additional fan coil system, installation work and electrical connection – 6650 euros.
Payback period calculation:
- Investment growth is: K2-K1 = 6650 – 6100 = 550 euros (or about 16500 UAH.)
- The reduction in operating costs is: S1-S2 = 27252 – 7644 = 19608 UAH.
- Payback period Tokup. = 16500 / 19608 = 0,84 of the year!
The efficiency of an air-to-water heat pump is determined by the energy conversion factor COP. The higher he is, the more efficient and efficient the heat pump works. H-r, for Raymer heat pumps, the heat efficiency coefficient reaches 4,8/ Most effective – with less energy consumption, HP works with low-temperature underfloor heating systems, walls or fan coils. Less energy is required by HP to heat a well-insulated house, with less heat loss.
Ease of use of the heat pump
Heat pumps – the most versatile, multifunctional and energy-efficient home heating equipment, apartments, office or commercial facility.
Intelligent control system with weekly or daily programming, automatic switching seasonal settings, maintaining the temperature in the house, economical modes, slave boiler control, boiler, circulation pumps, temperature control in two heating circuits, is the most perfect and advanced. Inverter compressor control, fan, pumps, allows for maximum energy savings.
findings
When implementing a full-featured heating/air conditioning and hot water system based on an air source heat pump, compared to gas heating, the advantages of HP are undeniable.
Even under the condition, that VT is more expensive equipment, through significant cost savings, this difference in capital costs pays off very quickly - in one season. And in the future, only the most comfortable remains., the most economical operation of a heat pump in terms of current costs.
The service life of the heat pump is several times longer, than gas or other equipment. Moreover, the reliability of these units is an order of magnitude higher..
The introduction of an air source heat pump for heating a private house is an ideal choice for saving utility bills and ensuring the best comfort conditions in the house.
What does cooperation with us give??
Unforeseen circumstances and unaccounted for difficulties.
We will take care of all the worries at any stage of implementation.
Regularly attending trainings and adopting best practices in project implementation.
Here you will surely be able to choose the right air conditioning equipment.
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