Thinking about installing a heat pump? In this episode of Homeowners Q&A, we dive deep into the essentials of heat pump design with industry experts Graeme Ross (Greystone Energy), Liam Riddex (Dex Renewables), Rob Berridge (Rob Berridge Designs), Simon Murray (Optimus Heating) and Ken Bone (Ultimate Renewables Suppliers).
Learn why proper system design is crucial for efficiency, performance and long-term savings. From heat loss calculations to pipe sizing, buffer tanks, and volumisers, we cover it all!
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0:00 Intro
1:50 What is heat pump design?
4:53 Key factors installers assess in a property
6:16 Biggest heat pump design mistakes to avoid
7:20 Purpose of a buffer tank in heat pump systems
10:15 Poor design causing frequent defrost cycles
11:30 Importance of system volume in low-temperature systems
14:59 Volumiser placement: flow vs. return and its purpose
21:07 Understanding changeover month cycling
23:07 Best practices for heat pump unit location
26:50 Microbore piping challenges in open-loop systems
34:36 Why heat pump data sheets don’t match real-world performance
36:56 How weather and climate affect heat pump performance
40:22 Why your worst-performing room matters for emitter design
41:38 Optimizing heat pumps for efficiency and grid protection
43:02 Challenges with DNOs (Distribution Network Operators)
43:28 Importance of the index circuit in low-temperature systems
48:03 Dealing with properties using multiple on-off thermostats
51:17 Essential advice for homeowners buying a heat pump
52:29 Conclusion and final thoughts