---
created: 2026-01-10T07:29:48
category:
  - "[[Products]]"
maker: "[[Mitsubishi]]"
model: EHPT21X-UKHDW
rating:
price:
acquired:
monthly-uses: 30
topic:
  - "[[91 Meigh Road Heating and DHW]]"
---
[[Grundfosliterature-5439390.pdf|grunfloss pump manual]]
[flow and pressure drop simulator](https://heatpumps.co.uk/technical/flow-rate-and-pressure-drop-simulator/)

- System details
	- Required flow rate @ design temp -4c
		- 0.3 m3/hr
		- 13.4 L/min
		- 0.22 L/sec
- Pumps
	- Main pump
		- Grundfos UPMGEO
		- 25-85 130
		- P/N:99259200
		- PC:2050HTA
		- [Product page](https://product-selection.grundfos.com/uk/products/up-oem/upm-geo-oem/upm-geo-59C23852)
	- Radiators
		- Grundfos UPM3 AUTO
		- 25-70 130 ZZZ
		- BDR Thermea Group
		- [Product page](https://product-selection.grundfos.com/products/upm3-upm4-oem/upm3-auto-oem/upm3-auto-59C93602)
	- UFH
		- Grundfos UPM3 FLEX AS
		- 25-75 130 AZA

I think the main pump would be good enough to drive the UFH and rads