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F.A.Q’s


Will the panel work on a rainy and windy day if it is only 5 outside?
Yes it will. We have installed all over Ireland, and systems have been proven to work in even the most harsh conditions. Please go to our how it works page for more information.
How much will my annual running costs be?
It is difficult to say as it depends on the amount of people living in your home full time and the amount of water they use but our results suggest that on average the price for hot water for the year using our product is approximately €50 per person.


Does this system need a backup-heating system during the winter
No, this is the only solar panel heating system that will provide you with 100% of your hot water. Also our cylinders come with a mini-emersion inside that can be turned on manually if needed. However if you would like to incorporate a back-up heating system there is a provision for a secondary heating coil in most of the systems we provide (call for specific information on tanks). If you decided that you wanted the secondary coil in the tank then we would advise you to put a manual leaver on the system and only use it if necessary.


Does the roof need to be reinforced?
No, the panels only weigh 8KG each, and measure 2M x 80CM


What happens if we install two panels on the roof?
The heating time will be reduced by half


Must the panels be fitted on the roof?
No, but we advise them to be south facing, ideally with an inclination angle between 45 and 90 degrees. They can be fitted to any outside wall, roof or garden. They can be placed East or West facing also and will lose minimal efficiency in this manner


Is It necessary to have any special power socket?
No, just a regular one


Can these panels produce electrical energy?
No, they can’t


Is regular maintenance necessary?
Virtually no maintenance is necessary. The magnesium anode must be checked annually however. This is a simple thing to do, EHP can advise on this.


Do you have references that I can contact and potentially visit?
All of our customers, without exception have been extremely happy with how the system has performed for them, and some of these customers are kind enough to recieve calls and even let potential customers view their system. EHP can advise on this.


Is the equipment guaranteed?
The panel and stainless steel cylinder comes with a 10 year guarantee. There is a five year guarantee on other parts and labour.


Is the system provided with any device to treat bacteria such as legionella?
Yes. In accordance with current legislation, it is provided with a circuit to rise the temperature up to 70 Degrees, which is manually activated and automatically disconnected


Who are EHP?
Efficient Heating and Plumbing have over 15 years experience in the renewable energy industry installing solid fuel boilers, wood boilers and geothermal heat pumps for both domestic and commercial buildings. All our work is completed to the highest quality and only use the the best products available.