independant floor control

[simond]

If you have an optimising room stat, carrying it around the house will waste energy because the stat is making the wrong assumptions.

The viessmann 35kw is a good boiler but if it were a holiday let situation I would be asking how many bathrooms, how many holidaymakers......

If you must have a combi the water flow rate needs to be suitable. Center Parcs used the Bosch Highflow in many of their larger villas, this delivers a flowrate of 20 litres per min for bursts of HW - ideal for larger parties.

At Center Parcs they have an elevated tank for cold water in the grounds, you will be stuck with whatever the water co supply you with, this is important and your best installer will take readings.

Splitting thr heating into 2 or 3 zones is a great idea. Don't be tempted to use Viessmann controls, none of your renters will have any idea what is going on.

 

[phillippilkington300]

Your right, not suitable for this situation as it could potentially have 3 different families in it, people often share I am led to believe and as you said, I can’t expect my customers to carry a box around with them everywhere. I think that it would do me well at home though and I will consider implementing this system here so thank you for bringing it up.

 

[phillippilkington300]

The water pressure in my area is very, we have to fit reducer valve to our systems. I would expect that normally only one family however its max 6 people sharing 2 baths, 1 shower 1 kitchen. I don’t think there would be anywhere to put a tank really, they are quite big bulky things to hide aren’t they. I had a flat with a tiny tank once, the only small tank i have ever seen, I only got half a bath of water out of it lol it was awful.

 

[dave18]

phillippilkington300

Tell the heating installer what type of heationg system you require and this is what they should fit,

a 3 zone system is no more difficult than a 2 zone DHW/CH system.

One thing to remember The motors in zone valves do go wrong from time to time so make sure the zone valves are getatable rather than under a laminate floor.

David.

 

[phillippilkington300]

I have a friend that had his Viessmann insatalled on friday, he has only just worked out how to get it on constant, still hasnt figured anything else out. Is there a system you would reccomend?

and Thanks David, noted

 

[Agile]

The water pressure in my area is very, we have to fit reducer valve to our systems. I would expect that normally only one family however its max 6 people sharing 2 baths, 1 shower 1 kitchen. I don’t think there would be anywhere to put a tank really, they are quite big bulky things to hide aren’t they. I had a flat with a tiny tank once, the only small tank i have ever seen, I only got half a bath of water out of it lol it was awful.

Its growing by the hour!

I had interpreted you as having TWO baths and that the shower was over the bath!

If you now have three different locations and all THREE can be used at the same time then that combi will only operate just one of them well !

A storage combi like a Vaillant 937 or Worcester 550 would be a little better ( for a short time as they give about 20 li/min ! )

But a stored system is far better !

There is so much more to this than sticking a pin in a list of boilers! Measuring the mains dynamic flow rate is the START !

Tony Glazier

 

[phillippilkington300]

I didn't stick a pin a a list of boilers lol, I did rad about them first. The shower isn't over a bath but it is in the master bathroom so effectively the same thing. As I said the water pressure is extremely high, I forget the figure, but people find there systems exploding if reducing valves aren't fitted. Why are these better? Do I take it from that they have a small storage of there own?

 

[phillippilkington300]

Im sorry if my posts are confusing, I have just noticed words missing, I bought a new wireless keyboard and the range isn't very good.

 

[phillippilkington300]

Out of interest, I did have a heating engineer on site. There is an ideal isar he30 there at the moment with no control valves and a wireless handset. The guy told me it was an excellent boiler and would do me fine, I should just change its location and leave the system as it is. I went on the internet to find out the opposite was true, especially the plant itself, they are meant to be a nightmare.

 

[Dan Robinson]

He thought the Isar was good??!?!!?


Oh dear.

 

[phillippilkington300]

Thats what the dude said, Im thankfull I checked

 

[Agile]

They are fine boilers when they are working.

The problem is that they are not best known for being reliable.

Thats not helped because some of the ignition faults are often more difficult to diagnose.

Of course the odd one will work fine for 10 years. But its the other 99 which cause the problems.

Its water FLOW which is important. Pressure is secondary but of some consequence if you want to use hot water on upper floors.

Tony Glazier

 

[phillippilkington300]

I read that model is particularly bad, due to a design fault they have endless problems with leaking and circuit board failures. Ok, I will have that checked.

 

[bigpkr]

My 2p's worth.

I would go with stored hot water maybe unvented system, with each floor having its own two port valve with programable room stat to control each floor.

Simple.