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[Deleted User]

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Effician

Min of 3 circulating fans running 24hr, stove fan running for around 15hrs a day at the mo ,  this time of year during the day& evening there can be upto 8 fans spinning at the same time with a consumption of around 45w but 90% of the time it's around 15w.

We have 1 Caframo stove fan, 2 downstairs 42" ceiling fans, 3x 16" dc stand fans, 2 x 8" dc fans.

The one log burner is all we have for heating & does the job fine as long as the air is circulated well. No draughts thanks to the direct air feed to the stove & very little condensation due to moving room temp air over the cold north facing 9" solid walls & old dg windows, the condensation which the now sold dehumidifier struggled to keep in check.

Effician

No real science behind it , it's been trial & error although everything i've tried over the last few yrs have been an improvement, some purchases i've moved on if a cheaper/more efficient  way has worked out, (we have a 54" a/c viper fan on the landing i didn't mention before but that has become an expensive to run option at 50w on low speed so rarely gets used now).

Today the sun is beaming through the SE windows so moved a stand fan across the landing to push warm air from the now quite warm  bedrooms to the cooler back of the house, the front room ceiling fan is on to mix the now rapidly warming air which will help the warmer air circulate downstairs.

Yorkshire_Pud

Interesting! Never even considered this before but don’t have a wood burner just gas CH.

Does a ‘cold/neutral’ fan blowing warm air cause some cooling of the warm air in transit? 

If it does maybe it’s not a significant amount as description seems all kept warm? Also assuming we’ll draught stripped and insulated as increased air movement could draw in any cooler air from outside?

[Deleted User]

Deleted_User said:

So, a vent in the wall between lounge and kitchen (that can be opened closed) and perhaps a little computer fan (battery operated) to encourage the warm air through?

You could even go so far as to have the vent opening and closing from a thermostat - such things exist (although mainly in the USA where central heating is often hot air rather than our hot water).

bhoy1976

We have communal heating which has been on all day. It was 16.9 Celsius today by the time I got home from the school run.

Without additional hearing, an electric fire, we either go to bed or sit tight for warmer weather. It's rented accommodation but the heating doesn't do the job on it's own.

Unfortunately, we just have to bite the bullet on this one and pay for an electric fire in one room to raise the temperature. The kids have been very resilient.

redbuzzard

When our heating broke down a couple of weeks ago we ran the 5kW log burner in the evenings to keep warm.  It's in the lounge so we opened the doors to the rest of the house.

We would end up with the lounge at 25 deg, and the rest of the house at 17 ish, not much heating effect noticeable (new 212 sq. metre house so well insulated).

I tried a pedestal fan in the lounge doorway one evening to try and move air into the hall, cross to the kitchen, and up the stairs.  I didn't notice any difference.

We used a couple of fan heaters in the bathrooms first thing each day.  We were both brought up with freezing bathrooms but we don't like them.

I have a stove fan but I'm not convinced it's doing very much.

Doc_N

Sounds counterintuitive, but actually very sensible, particularly when you've got a woodburner pushing out large volumes of heat in one place.

Never considered it, but in the event of power cuts this winter when we'd have to use the woodburner alone I'll certainly give it some serious thought.

Thanks!

Mstty

bhoy1976 said:

We have communal heating which has been on all day. It was 16.9 Celsius today by the time I got home from the school run.

Without additional hearing, an electric fire, we either go to bed or sit tight for warmer weather. It's rented accommodation but the heating doesn't do the job on it's own.

Unfortunately, we just have to bite the bullet on this one and pay for an electric fire in one room to raise the temperature. The kids have been very resilient.

Do you have no thermostat control over the communal heating or say in what it is set at come these type of overnight temperatures?

badger09

Doc_N said:

Sounds counterintuitive, but actually very sensible, particularly when you've got a woodburner pushing out large volumes of heat in one place.

Never considered it, but in the event of power cuts this winter when we'd have to use the woodburner alone I'll certainly give it some serious thought.

Thanks!

But ‘in the event of power cuts’ how will you power the fan?
Or have I misunderstood? 

Effician

Deleted_User said:
a) push cold air into the warm room rather than warm air into the cold room.
b) don't let an airflow get established - start your fans up as soon as you light the fire.
c) Have the fan  blowing the cold air into the warm  room at floor level
d) have any fans blowing hot air into cold areas high up

The thought that airflow will become established is an odd idea to me as my approach is to mix the air as much as possible with as little air airflow as possible ( low fan speeds & large dia blades).

Either push/suck cold air to the ceiling or hot air to the floor, the more even the air temp the better the heat take up of the fabric of the house & lower drop off in room temps overnight.