<div dir="auto"><div><div class="gmail_extra"><div class="gmail_quote">On 27 Jan 2017 8:03 p.m., "Chris Skerry" <<a href="mailto:angela.skerry@gmail.com" target="_blank">angela.skerry@gmail.com</a>> wrote:<br type="attribution"><blockquote class="m_3337850255379607254quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word">Marko,<div><br></div><div>Sorry but you are wrong.</div></div></blockquote></div></div></div><div dir="auto"><br></div><div dir="auto">Bold. ;-)</div><div dir="auto"><br></div><div dir="auto">My company bought an 8 zone Evohome kit to evaluate when it launched. This was our direct experience and we mucked about wirh it a lot.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="m_3337850255379607254quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>I believe it is the air movement (cold breeze) that sets the TRV temperature to 5 degrees for 30 minutes. Note that the TRV display says ‘Window 5 deg’. </div></div></blockquote></div></div></div><div dir="auto"><br></div><div dir="auto">It's a rapid temperature drop that does it. </div><div dir="auto"><br></div><div dir="auto">If the TRVs are mounted in the correct location for chirping room temperature (the top of the rad not at floor level) then a eat of air at 17C is sufficient to trip the window open sense in the 21C room.</div><div dir="auto"><br></div><div dir="auto">Hiding the TRV at floor level near the edge of the room lessens the likelihood of it happening. Keeping it further from the door also lessens the likelihood of it happening. The former is not a great idea for precise room temp control. The latter is unavoidable in many rooms.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="m_3337850255379607254quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>Well Damon should install Evohome and Danfoss LivingEco to assist in competitive analysis.</div></div></blockquote></div></div></div><div dir="auto"><br></div><div dir="auto">I'd save the cash and supply some people who have this installed some monitoring kit to see how it actually performs. ;-)</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="m_3337850255379607254quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div>My £10 says he will find Evohome better!</div></div></blockquote></div></div></div><div dir="auto"><br></div><div dir="auto">IMO the Danfoss product is the better one of the two.</div><div dir="auto"><br></div><div dir="auto">You'd expect this given their history of knowing a lot more about radiator control than Honeywell, who were always more about click-click room thermostats than self acting mechanical valves on radiators.</div><div dir="auto"><br></div><div dir="auto">Tado will be one to watch. They aren't fools and is the newest and priciest of them all.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">-- </div><div dir="auto">M</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><div class="gmail_extra"><div class="gmail_quote"><blockquote class="m_3337850255379607254quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><br></div><div>Regards,……………Chris</div><div class="m_3337850255379607254elided-text"><div> </div><div>On 27 Jan 2017, at 19:52, Marko Cosic <<a href="mailto:marko@coheat.co.uk" target="_blank">marko@coheat.co.uk</a>> wrote:</div></div><div><div><blockquote type="cite"><br class="m_3337850255379607254m_-5687742839995025205Apple-interchange-newline"><div><div class="m_3337850255379607254elided-text"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On 27 January 2017 at 19:23, Chris Skerry <span dir="ltr"><<a href="mailto:angela.skerry@gmail.com" target="_blank">angela.skerry@gmail.com</a>></span> wrote:<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="word-wrap:break-word"><div>I notice it kicking in winter time when the front door is opened for a period of time to load stuff from the car boot into the house. Another occasion is in the bathroom when I open the window to get rid of the fug that is clouding the mirror. the cold air causes it to display ‘window’ and set to 5 degrees, for 30 minutes.</div></div></blockquote><div><br></div><div>IME if you start doing any 'zoning' with the EvoHome system, driving temperature differences of say 21C in a room and 17C in the hall next to it, then this feature will also kill the heat every time you open the door to that room.</div><div><br></div><div>Fine if all the rooms are set to all the same temperature but this rather defeats the purpose of the exercise!</div><div><br></div><div>The self learning features also get as royally confused by door open/door close, weather comped flow temperatures, and incidental gains as you'd expect.</div><div><br></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="word-wrap:break-word"><div>I recommend you buy an Evohome system and install it in your house. You will then understand what you are up against.</div></div></blockquote><div><br></div><div>I'd use the Danfoss LivingEco stuff as 'the benchmark' myself but yes!</div><div><br></div><div><br></div><div>Also these where mounted at high level:</div><div><br></div><div><a href="http://www.ebay.co.uk/itm/152362511225" target="_blank">http://www.ebay.co.uk/itm/1523<wbr>62511225</a><br></div><div><br></div><div><a href="http://www.ebay.co.uk/itm/013G3001-Ventilunterteil-Danfoss-RA-UN-10-3-8-Eck-Ventil-/231595409377" target="_blank">http://www.ebay.co.uk/itm/013G<wbr>3001-Ventilunterteil-Danfoss-<wbr>RA-UN-10-3-8-Eck-Ventil-/<wbr>231595409377</a><br></div><div><br></div><div>(there'll be a set going into my place and getting instrumented in due course)</div></div>
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