Upgrading and Replacing a Heat Pump in Blackrock

Monday, June 14th, 2021

Dewar Plumbers were called by a client who was having issues with a leaking heat pump. Our plumber found that it was poorly installed less than 5 years ago. Unfortunately the best solution for the client was to upgrade the system to a Viessmann Vitocal 200-A 13kW (COP of 4.72A7/W35) heat pump combined with Vitocell 300-B 300l A-rated cylinder (standby heat loss of 1.06kW/24hr).

In order to achieve the minimum volume requirement to allow the heat pump to perform its defrost cycle and to prevent it from cycling, a Vitocell 100-E 46l wall hung buffer was used. A low loss header was used with a secondary pump, two motorised valves, and two-room stats to allow for separate control to the ground floor and first-floor heating zones.

We provided the installer with a full system design schematic for both the underfloor heating and heat pump. By doing this it made the installation and commissioning of this project simple and trouble-free. Precision Heating commissioned the installation, and both the client and installer were delighted with the end product.

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Customer Testimonials

Aris Global - Dublin 2

My first encounter with Dewar Plumbers could not have been more impressive,
albeit I might have been lucky that they had someone in the area I was still
pleasantly surprised that the plumber arrived within an hour and after repairs
required had been identified it took only another 3 hours for the job to be
completed. From the response to work ethic to administration
and cost I can’t fault them.

Thomas Mack - Wheels Couriers - Dublin 1

Wheels Couriers are delighted with both the excellent service and workmanship
we received. As per your sales agent Martin Grogans promise the work was
carried out in a very clean and professional manner and on time. I would have no
hesitation recommending Dewar for all your plumbing needs.

Lorraine Curran - Dublin 6

We can't recommend Dewar highly enough. Martin and his team installed a new
boiler, emersion tank and attic insulation all in one day to accommodate my
Mother who had just returned home from hospital. A wonderful service.

Gerard Kelly - Dublin 4

I am very happy with my new Gas Boiler Upgrade. Your crew were polite and
efficient.

June Summers - Dublin 3

Please convey my many thanks to your engineer for the excellent work he carried
out Power Flushing my home heating system.

Mr Maurice Gleeson - Malahide North County Dublin

Please thank your engineer for all his hard work, he is a good ambassador for
DeWAR Plumbers. I will recommend your plumbing and heating services to my
contacts & have you back when we need more work done.

Joe Devlin - Dublin 6

A big Thank You to the guys who put in the new Oil Boiler. The work that was done
was very professional and we found all at DeWAR Plumbers whether in person or
on the phone friendly, professional and very competent.

Mr Joseph O'Kelly - Dublin 6

Thank you for organising a call out to my house today on short notice to get my
gas boiler serviced. The engineer did a very professional job and was a pleasure to
deal with him.

Mr Quang - Dublin 22

I would like to thank your engineer for the speedy work that was carried out
returning the heating back on in our home. He was very helpful and explained
everything indetail. Excellent service a true 24 Hour service.

Greg Burke - South County Dublin

Just a quick note of thanks regarding the recent boiler service. As always on time
and job done efficiently. Thanks a million and keep up the good work.

Jerry O'Dwyer - Dublin 3

Just got the new oil burner installed . All working much better than before, spot on,
I'll certainly recommend you to others.