Recommendations (or warnings) for MVHR units

[Jolo]

As mentioned in other threads, I've sadly lost confidence in Brink due to the odour issues I've had with the Flair 200/225.

 

So I'm having to dive once more into the world of MVHR units, and I'm drowning in research now 😵 my head is just swimming with it.

 

I was going to splash out on the Zehnder Q350 with enthalpy exchanger but then I noticed it's almost 50kg, which will be a total pain to install. (I guess I could take the exchanger out to get it upstairs and on the wall...)

 

I do like the look of the DucoBox Energy D325 (and it's smaller sibling the D250, which isn't available until April), but the four-button wall-switch will apparently only do 10%, 50% and 100% of the maximum speed, and that can't be changed?! (Having a 10% flow button seems really strange to me, especially as there's a separate holiday mode. I'd much rather 30% 70% and 100%)

 

I've also just learned that many models of MVHR don't have constant volume regulation, which I think means that the m³/h you set is just a hopeful target, and it will drop over time, which seems a bizarre omission to me.

So... does anyone have recommendations, suggestions? (Or brands/models to avoid!) 

 

Our house is less than 80m², and the calculations based on Dutch norms came out at a top flow of 175 m³/h. Nothing fancy going on, a very simple set-up really!

Edited 8 hours ago by Jolo

[Gone West]

We had a Genvex combined unit, but I think others on here have used standard Genvex MVHR units. Ours worked well and was straightforward to set up.

[JohnMo]

7 hours ago, Jolo said:

I've also just learned that many models of MVHR don't have constant volume regulation, which I think means that the m³/h you set is just a hopeful target, and it will drop over time, which seems a bizarre omission to me

Think in general it's a lot of smoke and mirrors and up selling stuff that really doesn't matter. Generally when set up to building regs flow rates you are over ventilating anyway. So a small drop in flow makes no difference.

 

Do you need enthalpy heat exchangers in UK climate, not really.

 

Makes - Titon HRV, I have two units, both are performing well. UK technical support if you need it. UK made.

 

Also rebadged by Beam

https://store.beamcentralsystems.com/collections/heat-recovery-ventilation-mvhr-units

[Gone West]

1 minute ago, JohnMo said:

UK technical support if you need it. UK made.

I think if I lived in the Netherlands I would rather buy from inside the EU.

[Nickfromwales]

7 hours ago, Jolo said:

As mentioned in other threads, I've sadly lost confidence in Brink due to the odour issues I've had with the Flair 200/225.

Im still at odds, as I’ve literally never had a single issue with Brink.

 

If changing this out then just look for something reputable, with the ports as close to the current configuration as possible. 

[JohnMo]

13 minutes ago, Gone West said:

I think if I lived in the Netherlands I would rather buy from inside the EU.

Using your phone that detail doesn't pop up, you have to look at the profile, and many don’t bother adding that detail.

 

In that case just go Duco, they seem well thought out bits of kit