The Importance Of System Design, Heat Pump Sizing And Heat Loss Calculations – (Ep. 8) Jez Climas

We have an interesting conversation with Jez, Head of Renewable Heat at Midsummer Wholesale, covering a wide range of topics from correctly sizing heat pumps, the importance of heat loss calculations and the evolution of refrigerants in heat pumps.

We would like to thank the Ground Source Heat Pump Association for sponsoring this video in the Renewing the Conversation series: https://www.gshp.org.uk

Enjoy the interview, and please join the conversation by leaving questions or comments below.

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To find out more about Midsummer Wholesale please visit http://www.midsummerwholesale.co.uk

0:00 Intro
0:57 Back story to Midsummer Wholesale
3:08 Commercial versus residential projects and the importance of system design
5:46 Heat heat pump demand: retrofit versus new build
6:54 Heat pump sizing and importance of heat loss calculations
10:37 Are homeowners asking the right questions about heat pumps?
13:26 Which heat pump brands do Midsummer Wholesale sell and which heat pump would Jez install in his own home
16:02 The different types of heat pump refrigerants
17:44 What role does the hot water cylinder play in heat pump systems?
19:39 How different is the heat pump experience?
23:18 Heat pump, solar PV and battery storage option
25:03 Is battery return on investment possible?
27:29 The benefits of vehicle to grid (V2G)
28:51 Will COP26 affect homeowners in any way?
31:21 What advice would you give to heat pump installers?
33:16 Conclusion