Mitsubish Electric Lossnay Single Room MVHR

[mvhrishard]

Hi,

 

I'm considering a Mitsubishi Electric Lossnay Single Room MVHR for my home office, since I spent a lot of time in there, I notice the CO2 levels go up when all the windows are closed. There is no room for ducting for a central system.

Just wondering if anyone has experience installing or using these units / if they're happy with them?

There are other brands of d MVHR (single room MVHR) but most of them seem to be pairs that reverse every 30 seconds (so they take in air for 30s, then blow air out). I'm worried that a constant noise is a lot nicer than noise the keeps turning on and off, but if anyone has experience with other brands of dMVHR I'd also welcome your reviews.

Best,
jj
 

[JohnMo]

I considered using Prana dMVHR, single unit through wall, automated and looks well made

[HughF]

I'm at the stage where I need to look at dMVHR for a rear extension, thanks for the mention of the Mitsubishi Lossnay system, that's something I hadn't considered.

 

So far, I think my options are:

 

Partel Lunos e2-60 @ £1445 a pair (https://shopuk.partel.com/collections/ventilation-with-heat-recovery/products/e2-60-inc-transformer-controller)

Europlast Eextra @ £179, a single unit required (https://www.ventilationland.co.uk/product/40954/decentralised-mvhr-unit-o100-mm-with-switch.html#revtitlelnk)

Ecostream Prana 160 @ £590, a single unit required (https://ecostream.org.uk/prana-160/) - thanks to @JohnMo for bringing this nice unit to my attention

Mitsubishi Lossnay VL-100 @ £250, a single unit required (https://www.ebay.co.uk/itm/185312135737?ssPageName=STRK%3AMEBIDX%3AIT&fromMakeTrack=true)

 

Can anyone suggest why the Partel unit is so expensive, and for that matter why the Europlast Eextra seems so cheap?

 

Edited November 25, 2022 by HughF

[JohnMo]

Only thing to careful of, is, do the units give the required flow rate to comply with building regs.  When I started sizing for the house I needed so many units, the cost was stupid high.

[HughF]

12 minutes ago, JohnMo said:

Only thing to careful of, is, do the units give the required flow rate to comply with building regs.  When I started sizing for the house I needed so many units, the cost was stupid high.

Single story rear extension, 5m x 3m floor area, English regs.

 

It's either one of these or trickle vents, and I'm not going down that route.

[JohnMo]

The mitsubishi unit seems to have a very large flow rate, assume you will be just 20m3/h, this unit delivers a min flow of 61m3/h, which is about 3x what you need.

 

Europlast one looks ok size wise but looks like the cost is too low, so may be questionable quality.

 

Prana seems smart enough to only ventilate when you need it, and can turn down far enough, with a min speed of 12m3/h

[HughF]

On 25/11/2022 at 15:44, JohnMo said:

The mitsubishi unit seems to have a very large flow rate, assume you will be just 20m3/h, this unit delivers a min flow of 61m3/h, which is about 3x what you need.

 

Europlast one looks ok size wise but looks like the cost is too low, so may be questionable quality.

 

Prana seems smart enough to only ventilate when you need it, and can turn down far enough, with a min speed of 12m3/h

Agreed, the Prana unit looks like a good combination of price/performance….