# Mitsu Zubadan Flow Temperature Issue

**URL:** <https://community.openenergymonitor.org/t/mitsu-zubadan-flow-temperature-issue/29576>\
**Category:** Heatpump\
**Tags:** mitsubishi, zubadan\
**Created:** [6 January 2026 14:57 UTC](https://community.openenergymonitor.org/t/mitsu-zubadan-flow-temperature-issue/29576 "2026-01-06T14:57:35Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![Timbones](https://community.openenergymonitor.org/user_avatar/community.openenergymonitor.org/timbones/32/20308_2.png) [@Timbones](https://community.openenergymonitor.org/u/Timbones)\
**Post date:** [7 January 2026 16:47 UTC](https://community.openenergymonitor.org/t/mitsu-zubadan-flow-temperature-issue/29576/9 "2026-01-07T16:47:36Z")

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> [@bontwoody](#):
>
> Long term is it worth looking at getting rid of it and switching to a direct circuit?

I’m not sure if it will be worth it. One experiment here concluded it made no difference:

- [Heat Pump Experiment | Protons for Breakfast](https://protonsforbreakfast.wordpress.com/2024/06/17/heat-pump-experiment/)

Broader thoughts in this topic:

- [Removing Low Loss Header on Samsung Gen6 System](https://community.openenergymonitor.org/t/removing-low-loss-header-on-samsung-gen6-system/25863)

It may be easier to balance the two pumps instead.

> [@bontwoody](#):
>
> Is 13 lt/m a bit on the low side for a 12 kW unit?

This is near the bottom of the range, but should still be good enough for it to operate.

> [@bontwoody](#):
>
> From data and a heat punk survey I did, I think the actual heat loss might be about 6-7 kW

What’s the total radiator output at DT50?

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_[View the full topic](https://community.openenergymonitor.org/t/mitsu-zubadan-flow-temperature-issue/29576)._