"Andy Hall" wrote in message
...
On Wed, 3 Dec 2003 10:56:13 -0000, "IMM" wrote:
Depends on the burner design. A highly efficient spot rated burner
(non-modulating) coupled to a heat bank can be very efficient overall.
Ok, but that's a different game. The background was a more
conventional system.
Many top end developers are fitting Myson Kickspace heaters in kitchens.
Presumably this is to save wall space that would otherwise be needed
for a radiator.........
Some have little walls space as they fill the walls with cupboards, and they
fit them in the utility rooms too.
We had one of these (actually a wall mount version) in a previous
house to heat a stairwell and landing. It was effective but pretty
noisy. I wouldn't have wanted it in the kitchen...
They are acceptable in kitchens as under the cupboards much of the sound is
muffled. Also they blow hot air over your feet, which is appealing to many
people.
These require a high temperature flow for efficient draught free
operation.
Wouldn't the main point be to get enough heat output?
You size to suit, but a temp flow is essential.
The solution used to be an integrated thermal store as it provides
75-80C
temps and a spot rated burner boiler always set to max temp. The
efficiency
was good as the burner was highly efficient with design maximised for a
set
rate.
Condensing boilers have advanced recently so now some approach it.. A
DHW
only heat bank with one high temp circuit taken off the heat bank for the
Myson(s) and the CH circuit left to modulate on a condensing boiler.
When
the heat bank requires heat the boiler runs up to full temp. When back
on
CH it is left to modulate.
I see what you're saying but it sounds like a lot of extra complexity
- presumably an extra pump for the Myson circuit??
Not extra complexity at all. Just a pump and flow and return for the
kickspaces from the heat bank/thermal store. I wouldn't call that complex
at all. They sometimes put in room stats that when satisfied cut the pump
and Kickspaces.
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