Boiler for Hot Water

[SolwayFarmer]

We’re putting in a new dairy and are slightly limited in terms of electric supply so looking for ways to reduce demand and thought about an oil boiler to heat the water for the dairy.
Was wondering if anyone doing similar. What size might I need and would a Combi boiler do the job? Would save a tank etc.
Any help appreciated
Thanks

 

[upnortheast]

How much hot water do you need a day ?

 

[br jones]

Little gas combi on a bottle ,

 

[SolwayFarmer]

Not sure to be honest. Will be for a 22:22 parlour and a 10000 litre eodc bulk tank. Probably hot wash parlour twice a day

 

[br jones]

A combi gives you between 9 to 24 litres ish,so maybe not enough water

 

[Blue.]

Combi would be fine for the tank but no good for filling the wash trough.

No reason why you couldn't use a conventional oil boiler and cylinder set up.

No need to do hot wash at nights,it's a waste of time chemic and money.

 

[Will Blackburn]

Heat the water from cooling the milk, job done.

 

[coomoo]

We’re putting in a new dairy and are slightly limited in terms of electric supply so looking for ways to reduce demand and thought about an oil boiler to heat the water for the dairy.
Was wondering if anyone doing similar. What size might I need and would a Combi boiler do the job? Would save a tank etc.
Any help appreciated
Thanks

Get some pictures up! What make of parlour @SolwayFarmer

 

[upnortheast]

Not sure to be honest.

Would be a good idea to work out a figure so you can size your boiler correctly


Heat recovery from your compressors would be a good start, then top up temp with leccy or oil.
Heat recovery was in the last small grant scheme. A new one is promised shortly, Standard cost was circa £7k last time

Local fridge man is pricing up a system for us now ready for the grant scheme opening.

 

[pappuller]

We’re putting in a new dairy and are slightly limited in terms of electric supply so looking for ways to reduce demand and thought about an oil boiler to heat the water for the dairy.
Was wondering if anyone doing similar. What size might I need and would a Combi boiler do the job? Would save a tank etc.
Any help appreciated
Thanks

How limited ?

 

[Blue.]

How limited ?

If you can run a vacuum pump you can heat water off peak or between milking.

Localish 60 point rotary runs on single phase with the vac pumps started in sequence.

 

[pappuller]

If you can run a vacuum pump you can heat water off peak or between milking.

Localish 60 point rotary runs on single phase with the vac pumps started in sequence.

Agreed, we have 3 bots and all associated shenanigans on single phase, but 200 amp, a 60 amp single phase supply might be different [emoji85]

 

[dazza b]

Agreed, we have 3 bots and all associated shenanigans on single phase, but 200 amp, a 60 amp single phase supply might be different [emoji85]

Are you sure on that I’m fairly certain max amps per phase is a 100amp so you could be on a 2 phase or 3phase

 

[pappuller]

Are you sure on that I’m fairly certain max amps per phase is a 100amp so you could be on a 2 phase or 3phase

No single phase 200 amp, highways agency uprated transformer from 100 to 200 to get power to m6 overhead gantry, which they have now removed and replaced with the smart motorway.one of the few perks

 

[RushesToo]

I would think that recovering heat from the milk and some solar thermal collectors would probably do the job. I believe he solar thermal gets non domestic RHI payments [you get discount for using electricity this way]. I suspect that @akaPABLO01 and @Exfarmer could be rather helpful here.

 

[upnortheast]

Are you sure on that I’m fairly certain max amps per phase is a 100amp

Called a split phase supply. The most they can get off a single phase line, so 2 x 100 amp live

 

[Exfarmer]

I would think that recovering heat from the milk and some solar thermal collectors would probably do the job. I believe he solar thermal gets non domestic RHI payments [you get discount for using electricity this way]. I suspect that @akaPABLO01 and @Exfarmer could be rather helpful here.

Sorry , this is not my subject,

 

[powerfarmer]

What about a Dairy Geyser?
https://dairygeyser.ie/

I ve seen them at a few shows, looks a neat idea.

 

[Will Blackburn]

Would be a good idea to work out a figure so you can size your boiler correctly


Heat recovery from your compressors would be a good start, then top up temp with leccy or oil.
Heat recovery was in the last small grant scheme. A new one is promised shortly, Standard cost was circa £7k last time

Local fridge man is pricing up a system for us now ready for the grant scheme opening.

I think it can be done for a lot less, basically a heat exchanger and a large “megaflo”.

 

[jimmer]

Right, firstly, hot washing once a day is ample, there are people doing it 3 times a week
Secondly work out how much hot water you need
Thirdly remember you need all that water quickly, not wait 10 minutes for the tub to fill up and lose its heat before it's circulated
Fourthly if you can boil a kettle and cool milk you can run a hot water element
Fifth, don't listen to too many salesmen, keep it simple