To calculate the running cost of a heat recovery ventilation system, you will need to consider several factors:
- The efficiency rating of the heat recovery unit: The more efficient the unit, the lower the running costs will be. Look for a unit with a high efficiency rating, such as a Seasonal Energy Efficiency Ratio (SEER) or a Coefficient of Performance (COP) rating.
- The size of the system: A larger system will require more energy to operate and will have higher running costs than a smaller system.
- The cost of electricity: This can vary depending on where you live and your specific electricity rate.
- The hours of operation: The more hours per day the system is in operation, the higher the running costs will be.
- The maintenance of the system: Regular maintenance is required to keep the system running efficiently, and the costs of this should be taken into account.
To calculate the running cost, you can use the formula:
Running cost = (Size of the system x Cost of electricity x Hours of operation) / Efficiency rating