heatrae sadia 25l 9004010.

Matt0029 · Apr 14, 2024

Has anyone one fit or serviced one of these before; Heatrae Sadia 25l 9004010.
It a 25 litre hot water storage cylinder.

Matt0029 · Apr 16, 2024

Thanks yes the draw off are all lower the the unit. Breather pipe has tundish on it.

John.g · Apr 16, 2024

Maybe worth checking that for scale build up, if its restricted then the flow from any hot tap will be restricted as well except its just a pure vent pipe,, any photo or description of the unit?.

Ben-gee · Apr 17, 2024

Check the breather pipe for blockage, kink, hernia.
If air can’t get into the unit - water can’t get out.

Matt0029 · Apr 17, 2024

Ben-gee said:
Check the breather pipe for blockage, kink, hernia.
If air can’t get into the unit - water can’t get out.

Thanks I think there is a filter in the breather pipe. But there isn't much distance between the bottom of the unit and the hot taps. Only 1meter tops. So 0.1bar.

John.g · Apr 17, 2024

I have a upstairs "1/2" cartridge tap gravity fed from ~ 0.25M that flows 4.0LPM, so if the water level in your cylinder is, say 0.15M above the tap then you might expect ~ 3.0/3.1LPM.

Matt0029 · Apr 17, 2024

The distance between the base of the cylinder and the hot tap outlet is around 1meter. So this would give 0.1 bar pressure. What flow rate would this likely give?

John.g · Apr 17, 2024

Maybe 2.0 to 2.5 LPM based on my tap.qqqqqqqqqq 50 chacters to post

Matt0029 · Apr 17, 2024

Thanks I don't think it is that at the moment. Possibly abit of an airlock/ breather pipe blockage.

Matt0029 · Apr 17, 2024

If it does flow at a decent enough level. If were to fit dual flow taps. Doesn't mix in tap mixes after leaves the spout. Would single checks not be needed to avoid back flow

John.g · Apr 18, 2024

Probably not, I have a d/stairs mixer like that where it mixes in the spout, 3.0bar cold & 0.5bar Hot gravity, no problems.

heatrae sadia 25l 9004010.

Matt0029

Matt0029

John.g

Ben-gee

Matt0029

John.g

Matt0029

John.g

Matt0029

Matt0029

John.g

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