Downdraft extractor or over-hob?

[Lincolnshire Ian]

Hiya

We have started designing our kitchen and have faultered at the design of the hob extractor. 

We have a MVHR system, but want a supplimentary hob extractor. The kitchen has a vaulted ceiling which means a "traditional" design over-hob extractor can't butt up against the ceiling for a clean design. We also aren't planning to have any wall cupboards so an extractor built into an over-hob cupboard wouldn't work either. 

We have looked at venting hobs but are worried that they won't have enough umphh to control the steam and are massively overpriced. 

Any help would be appreciated particularly with over-hob extractors which look nice "free-standing" on a wall with no cabinets or vented hobs. 

Thanks 

[JohnMo]

1 hour ago, Lincolnshire Ian said:

control the steam

Your MVHR will do that on its own. We only use the extractor on rare occasions now (smelly stuff and only on low) MVHR does a good if it on it own. A house with MVHR isn't the same as a normal house with intermittent fans. House feels and act differently.

 

Anything else is a design thing down to personal preference.

[Tetrarch]

We* use our Neff Downdraft every time the hob is used. It has a setting that adjusts automatically to accomodate the amount of steam that is being generated. Ours is on an island with a large rooflight over part of it, so keeping the ceiling clear was very important to us aesthetically

 

We actually went to the Siemens demo kitchen to see the identical downdraft hob in action and it has proved as effective in practice as it was in the showroom. THEY ARE NOT CHEAP, but this was an early line item in our budget and we got a great cashback from Neff by buying multiple items in their annual Autumn offer. We had them in boxes for nearly 8 months before they were installed. 

JohnMo is dead right about the MVHR and humidity. Our MVHR inlet is positioned at the left-hand corner of the pic below. It has two extract pipes in it. We would use the "boost" function but I haven't found a way to make my Alexa+Shelly switch work yet and it seems to work perfectly well without

 

Regards

 

Tet