<div dir="ltr">forgot to hit reply all....<div><br></div><div><span style="font-family:arial,sans-serif;font-size:13px">it might be off topic, but my math teacher when i was in 8-9 grade made his own system, he had both a wood burner, oil burner and a solar system for hot water... the solar system only had a very tiny cylinder and the a heat exchanger... all 3 system was coupled in series with an old but still very sound and solid fuel oil tank... this tank feed all the rads and a bigger hot water cylinder with a heat exchanger built in. </span><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">this oil tank was now used to store heat, he simple situated it in the corner of the room but with plenty of space for about 200-300mm of insulation all the way round... </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">for a uk system i would do almost the same.... i know that some solar system (for hot water) do have an resistance heater built in to heat the water early in the morning where you badly need the hot water.. maybe there is even a hot water cylinder with just an electronic heater.... </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">it can in fact be done lots of ways... the imagination is the limit </div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">2014-09-07 13:00 GMT+02:00 Damon Hart-Davis <span dir="ltr"><<a href="mailto:dhd@exnet.com" target="_blank">dhd@exnet.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
I have a thought in the back of my mind about carefully making some use of residual exported solar PV generation in winter with highly-efficient storage heaters controllable by an extension of OpenTRV to supplement a gas-fired system. This would also help with grid balancing.<br>
<br>
(Yes, I am allergic to electric resistance heating in most circumstances, but if done carefully this might be virtuous.)<br>
<br>
Does anyone know of off-the-shelf UK storage heaters that have electronically-controllable fans/vents and that can retain the bulk of their heat for much more than a day, preferably a week.<br>
<br>
Rgds<br>
<br>
Damon<br>
<br>
<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><pre><pre><span style="white-space:pre-wrap"> |||||
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