PROJECT 29 of 3.5kw elements . The result was a pleasing * 62 % saving on running costs in comparison to a traditional hot water storage unit . Unique to the system is the use of refrigerant in a heat exchanger directly in tank or storage vessel as opposed to pumping the water from heat source and back to storage .
On the plumbing side , we chatted with the plumber , David , and he found no unusual aspects of the plumbing particularly as all aspect and the compulsory standards were followed according to SANS 10400 P , SANS 10254 1 & 2 , and fittings were all according to the standards .
He did comment that because the complex was spacious and the service ducts large , the plumbing installation was efficient .
“ In Phase one of Glen Acres a 200l / 5.2kw was installed and has been operating for two years without a problem .”
Testimonials
Units with compressors serving middle flats .
“ I would like to make special mention of the MD RetroPump , a unique water heating system that was procured by us and installed by MD A / C and Refrigeration .
The product works exactly as described , resulting in a massive saving for our prospective homeowners and tenants . The product in question has also proven to be incredibly reliable with a very low call back rate .” – Jade Construction .
“ I remember very clearly that the owner , Derick , stated at the time that my electricity bill would “ drop by up to 50 %”, nice sales pitch I thought . After the fitment was done , I watched my utility bill with an eagle eye , and four months later I could clearly see the reduction . It was true I have saved 50 %. My electricity bill used to be around R500pm , and it is now R250 – R300pm , multiply that by 36 months – it has paid for the unit already !” – Private owner .
Neat finish to the tanks and compressors inside .
* test conducted at 1 753m above sea level with an ambient temperature of 21 ° C and starting water temperature of 16 ° C . PA
June 2021 Volume 27 I Number 4 www . plumbingafrica . co . za