Done a fair bit of reading and have come to some conclusions. Would be grateful if you could cast your eye over and offer thoughts:
Moving into a fairly large 4 bed 1920s solid wall house very soon. Currently a very old floor standing boiler with hot water tank in the bathroom. Gravity fed I'd bet. Currently just the 1 bathroom, however in the future I'll be banging in an ensuite. Family of 4, 2 young kids growing up fast.
In an ideal world, it looks like a heat only boiler with a megaflow type unvented cylinder. Possibly 200l ish. If I had a load of cash I would probably opt for this, but we have stretched ourselves for the move and are low on funds for the million things needing doing.
So I'm thinking of a compromise - the combi boiler! Looking at a Valliant 838 with the valliant 470 control with the outside temp sensor. Thoughts behind this are decent flow rate for hot water 15lpm (as combis go) and a bit of economy saving with the temp sensor.
Rather taken with the nest thermostat, simply because it is space age looking and can be smart phone controlled, although I do wonder practically how much I need to do that once set up! Either way I'm a glutton for gadgets!
Thoughts? Am I being short sighted with the combi? Will I be kicking myself in coming years or just get used to the slightly less good flow rate? I've got a Worcester combi now that does 12lpm and is fine unless someone turns on a hot tap - but I'm used to it. I'd guess I'd be looking at a 50% price hike for the unvented option....
Moving into a fairly large 4 bed 1920s solid wall house very soon. Currently a very old floor standing boiler with hot water tank in the bathroom. Gravity fed I'd bet. Currently just the 1 bathroom, however in the future I'll be banging in an ensuite. Family of 4, 2 young kids growing up fast.
In an ideal world, it looks like a heat only boiler with a megaflow type unvented cylinder. Possibly 200l ish. If I had a load of cash I would probably opt for this, but we have stretched ourselves for the move and are low on funds for the million things needing doing.
So I'm thinking of a compromise - the combi boiler! Looking at a Valliant 838 with the valliant 470 control with the outside temp sensor. Thoughts behind this are decent flow rate for hot water 15lpm (as combis go) and a bit of economy saving with the temp sensor.
Rather taken with the nest thermostat, simply because it is space age looking and can be smart phone controlled, although I do wonder practically how much I need to do that once set up! Either way I'm a glutton for gadgets!
Thoughts? Am I being short sighted with the combi? Will I be kicking myself in coming years or just get used to the slightly less good flow rate? I've got a Worcester combi now that does 12lpm and is fine unless someone turns on a hot tap - but I'm used to it. I'd guess I'd be looking at a 50% price hike for the unvented option....
