| answer text |
<p>Of the variables referred to, those that impact the efficiency of the boiler itself
are the heat distribution system, comprising emitters, pipes and pumps and the user
controls.</p><p> </p><p>Condensing boiler efficiency is typically improved by a lower
water return temperature. The design, efficacy and maintenance of the heat distribution
system can impact this temperature. For example, an undersized system will require
a higher flow temperature making it more difficult to achieve a low return temperature.</p><p>
</p><p>User controls such as timers and thermostats can impact when the boiler turns
on and off. The rate of this (cycling) can also impact the efficiency of the boiler
with rapid cycling being potentially detrimental to efficiency. User controlled radiator
valves can affect the flow rate through the system also impacting flow and return
temperatures and cycling affecting boiler efficiency.</p>
|
 |
