Nuaire Drimaster location

dasmith21

Hi

Im thinking of getting one of these units with heater on and have read numerous threads relating to how good they are and that they actually work.
I need a small bit of advice from some of you on here before i finally plunge in and buy one and if it really is what i need.

Our problem is we have condensation and mould all be it in small amounts in 2 of the upstairs bedrooms, we have aquired a Ebac dehumidifier to help, this does dry the windows off ok. I've read about these Nuaire units and ive put my humidity reader into the loft and for the last couple of days its up into the 70% bracket. Is this ok to still put a unit in? as wouldnt i be pushing damp air into the house?
any advice would be appreciated.

richardc1983

A post was previously done about this exact thing... 70% humidity once it warms up is more like 50%. Seriously fresh air is always the best you can get rid of that dehumidifier then.

Graeme007

I have read this thread with interest...Thanks for some very helpful info.

We live in a 1970's Bungalow, 4 bedrooms 2 bathrooms, large kitchen dinner, 2 living rooms, halls...

The property is 22m x 8.700m we have a hall at there half way point.
Ceiling height 2.650m
Hall width 1.2m...with larger hall in centre 2.1m x 3.2m

We do have issues with condensation etc...

My question is, would a Drillmaster unit be effective in our home?
Given the length and that it is a Bungalow.
I'm concerned about the flow of air reaching each end of the house.

Any help much appreciated.

Graeme

richardc1983

It will certainly help you would need it on speed setting 6/6. You're is a very large properly though but they are very good units. You've got to think this unit is going to inject fresh air into the house and dilute the air that's already in the house down so without a doubt that would work. Think of air like a liquid... If you want it to exit the house at the furthest end ensure there are some gaps for it to get out and it will encourage air to take that path. Have trickle vents closest to the drimaster closed and the ones furthest from it open so air would flow to area of least resistance etc.

richardc1983

Forgot to mention, we live next to the motorway. Previously when we left windows open to ventilate the house we would get lots of black dust in the house on sills etc. I went u in the loft todsy to put some suite cases away and the filters are already turning grey from the amount of dust they are filtering out the air. Amazing, we were breathing this in before no wonder we had so much dust. These filters last 5 years but I reckon I might wash them in the washer later this year on a low temp wash.

You set the speed plus 1 more higher so for 2 beds setting 2 is enough but I think it is better on setting 3 comfortably. For a large house like yours just put on setting 6. Do you have decent bathroom extractor fans as well. That topic has been covered in here also I think.

dampdaveski

Graeme,
As Richard states a drimaster would work well, but I would be reluctant to rely on the unit working at 'full chat'
On full speed you will hear it and it will turn your hallway into a fridge during cold weather.
Your post indicates that you have 2 hallways, assuming that I am visualising the layout of your bungalow correctly (always difficult on a forum) you could fit the drimaster unit and fit a splitter box or T piece and have the unit discharging air into both hallways (via 2 diffusers)

It would need setting up by someone who knows what they are doing and preferably who has access to an air flow meter, the type of installer you ideally want is someone who is a BPEC qualified domestic ventilation installer, as they will understand the importance of balancing the unit

The other thing Richard quite rightly asks is what sort of extract do you have?
Good quality extract to the main bathroom, kitchen and any ensuites in conjunction with the drimaster will most likely control the condensation.

DD

richardc1983

Graeme007 wrote: »

I have read this thread with interest...Thanks for some very helpful info.

We live in a 1970's Bungalow, 4 bedrooms 2 bathrooms, large kitchen dinner, 2 living rooms, halls...

The property is 22m x 8.700m we have a hall at there half way point.
Ceiling height 2.650m
Hall width 1.2m...with larger hall in centre 2.1m x 3.2m

We do have issues with condensation etc...

My question is, would a Drillmaster unit be effective in our home?
Given the length and that it is a Bungalow.
I'm concerned about the flow of air reaching each end of the house.

Any help much appreciated.

Graeme

Your house based on the measurements you gave is approx 2056m2 in total floor space. Now based on formula ASHRAE 62.2 table 4.1 the reccomended ventilation for a house of your floor space with 4 bedrooms is 75cfm - converted into drimaster specifications which is 35l/s this would be achieved on setting 3/4 - so it should do it quite comfortably to be honest. I would reccomended the minimum setting be 4 through mine is set a speed higher than suggested. It just keeps the house that little bit fresher and cooking/bathroom/bedroom smells dissipate that bit quicker. Deffo go for the heat model and I think you would be fine with perhaps just the one diffuser point in the hallway. Is there a radiator near where you would mount the air diffuser? If there is then bonus.

We've had some lovely sunny days so far and the loft has reached 18c whilst it's been 8c outside - that warm dry air is pushed into the home and the drimaster ramps up a bit to make use of that warm loft air.

I also at the same time fitted a nuaire cyfan to replace the rubbish extractor in the bathroom. The fan is very powerful but not silent same as any other extractor. The best option for bathrooms is an inline duct fan (see below) with acoustic ducting, my brother has just fitted this in his new bathroom after being specified by me and he's very impressed you can only tell its on if you hold paper upto the vent in the ceiling. This fan is very powerful and could do both your bathrooms together. To this you would need:

http://www.amazon.co.uk/MANROSE-MF100T-IN-LINE-EXTRACTOR-MIXEDFLOW/dp/B005F41YOM/ref=sr_1_2?ie=UTF8&qid=1426875418&sr=8-2&keywords=inline+fan

Acoustic ducting - http://www.amazon.co.uk/Pack-Acoustic-Extractor-Ventilation-Hydroponics/dp/B00N1XOY96/ref=sr_1_12?ie=UTF8&qid=1426875966&sr=8-12&keywords=acoustic+ducting+100mm - cheaper to buy pack of 4 than 1!

You will then need the intake and extract vents which are:

2x http://www.amazon.co.uk/Adjustable-Air-Valve-Round-White/dp/B004BON7YW/ref=sr_1_4?ie=UTF8&qid=1426875643&sr=8-4&keywords=Adjustable+Air+vent (bathroom side)

Followed by 1x http://www.amazon.co.uk/Internal-Ventilation-Grille-Extractor-Bathroom/dp/B00B0WLL1E/ref=sr_1_14?ie=UTF8&qid=1426875739&sr=8-14&keywords=100mm+air+vent (where extract air blows out through the soffits)

To connect the ducting up in the loft you will need a y adapter to link the 2 bathrooms upto the fan. http://www.amazon.co.uk/100mm-piece-connector-Splitter-Joiner/dp/B00LUW2R26/ref=pd_sim_kh_2?ie=UTF8&refRID=1G26ZMQ0CZGQ9DNBCPRV

Suspend it from the loft rafters using http://pages.ebay.com/link/?nav=item.view&alt=web&id=190705501859 and you then also have it vibration free. The drimaster also hangs this way with supplied cord. Very neat and tidy install.

This is cheaper than doing the cyfan from nuaire. Neat and tidy and silent! Wire it into speed 2 as it would be doing 2 rooms.

Graeme007

thanks Richard, appreciate your responses.

Would I be right in thinking that the 6 setting would create a noticeable 'draft' or 'breeze' effect around the diffuser? I presume it needs to be more forceful to enable it to circulate air to such a wide area.

Graeme007

sorry dampdaveski, just saw your post.
appreciate your input.


Yes we do need to get a decent showroom extractor, kitchen has one already.

Yes Richard there is a radiator in the 'middle hall'...and thanks for working all that out...wouldn't have known where to start! so setting 4 would be fine.

richardc1983

Graeme007 wrote: »

thanks Richard, appreciate your responses.

Would I be right in thinking that the 6 setting would create a noticeable 'draft' or 'breeze' effect around the diffuser? I presume it needs to be more forceful to enable it to circulate air to such a wide area.

If just updated and put a detailed post above. You wouldn't need speed 6 I don't doubt unless you dry washing all over radiators indoors, don't cook with pan lids on, kitchen cooker hood just recirculates rather than outdoors. I've just had mine on speed 6 for a week it made the bathroom cold. Downstairs was fine as the heating just stayed on longer. I've put it back down to 3 (reccomended is 2). Speed setting 6 is for 6 bedroom house or very very large houses so it assumes that you wouldn't feel the draught as much due to the size of the hallway etc.