Why the microbore heat pump is Highly Efficient, with a 400% efficiency it is connected to microbore radiators. How was it achieved?
Key considerations when choosing a heat pump, my thoughts:
Heat pump Design:-
Improve insulation where you can
Design the system for low flow temperatures
Correct sizing of the heat pump
Avoid a buffer tank also known as hydraulic separation.
Do not re-plumb everything
Avoid Glycol antifreeze
o Use antifreeze valves instead
Use a zoning system
o But It is very important that enough radiators are left open (no restriction).
Use a deaerator valve rather than inhibitor in the system
Heat Pump resources and links:-
Open energy monitor live pages – see how real heat pumps are performing
https://heatpumpmonitor.org/
Open energy monitor shop https://docs.openenergymonitor.org/applications/heatpump.html
Heat Geek https://www.heatgeek.com/
John Cantor https://heatpumps.co.uk/
Energy Stats UK https://energy-stats.uk/my-5kw-vaillant-arotherm-heat-pump/
University of Ulster study buffer tank performance degradation
https://renewableheatinghub.co.uk/how-to-correctly-install-heat-pumps-so-that-they-work-properly-and-efficiently
MCS Heat loss spreadsheet from here https://mcscertified.com/mcs-launch-new-improved-heat-pump-calculator/
Equipment installed:-
Heat Pump Monitoring device - This allows us all, installers and clients, to see how the system is performing - we installed a Level 3 Heat Pump Monitoring Bundle (emonHP) £458 (excluding VAT) - From https://shop.openenergymonitor.com/level-3-heat-pump-monitoring-bundle-emonhp/
Air Separator - SpiroVent® Rv2 Air Separator (£116.24 Ex VAT) - automatic venting mechanism and a SpiroTube which removes air and micro-bubbles from the water circulating in a wet heating system. From https://www.bes.co.uk/spirovent-rv2-22-mm-comp-21337/
Water in the closed system - What do I need to know?
"It's much easier to fill with tap water (in most cases) and leave it and never really need to touch again then buying unnecessary inhibitor and testing it every year." Says HeatGeek he gives an extremely detailed explanation here if you want to go in to the details. https://youtu.be/NJFU-nbliXw?si=7eOAhIhQpcHllxDl
In my opinion Octopus Energy are the most innovative supplier in the emerging green power space. If you are not with Octopus you can use my referral link and we will both get £50.
https://share.octopus.energy/good-finch-364
Contents of this video
00:00 Micro bore pipes and heat pump intro
00:56 Insulation, insulation ....
02:05 Which Heat Pump?
02:22 Heat Loss Calculations
04:07 Gas v heat pump decisions
06:30 My installation
07:38 Radiators
08:00 No buffer Tank
08:08 Constantly on radiators
08:28 No glycol
09:00 Microbore pipes
09:28 Open Energy Monitor system
10:52 Valliant's control system
11.34 Installation Costs
12:14 Heat Pump Performance
16:46 Heat Pump varying output
19:14 Real time output
19:37 Two months summary
20:07 Costs v gas system
23:33 Microbore heat pump recommendations
24:43 Low flow tempertures
25:19 Radiator output
25:51 Correct size heat pump
26:28 Check heat lossa calculations
26:43 Iverter/variable output heat pump
27:20 No Buffer Tank discussion
30:34 Do NOT replumb heating system
30:53 No Glycol antifreeze
31:57 Dedicated open radiators
32:25 Heat Pump Installers
33:19 Open Energy Monitoring kits
33:58 UK wide Heat Pump performance site
35:46 Heat Geek
36:00 John Canter
36:32 Energy Stats UK
37:03 University of Ulster Buffer Tank Study
37:09 Valliant Performance App
38:43 What next?
That summarises the Microbore Heat pump after two months after installation.