{"id":1114,"date":"2013-09-04T17:59:37","date_gmt":"2013-09-04T17:59:37","guid":{"rendered":"http:\/\/idostuff.co.uk\/blogs\/?p=1114"},"modified":"2013-09-04T17:59:37","modified_gmt":"2013-09-04T17:59:37","slug":"ventilation-duct-manifold-1-to-3-home-made","status":"publish","type":"post","link":"https:\/\/idostuff.co.uk\/blogs\/2013\/ventilation-duct-manifold-1-to-3-home-made\/","title":{"rendered":"Ventilation Duct Manifold 1 to 3 Home Made"},"content":{"rendered":"

This is probable the first mention of the MHRV (Mechanical Heat Recovery Ventilation) so here\u2019s a quick run-down of the thinking behind it.<\/p>\n

The Cottage will be\u00a0a \u00a0holiday let, \u00a0if it was just us I probably wouldn’t \u00a0have gone to the time and expense of installing the system, we would open windows and turn on fans when necessary.\u00a0\u00a0 Old buildings such as this one can suffer badly from damp rusulting from our modern ways living. Holiday makers won\u2019t necessarily treat the place like we would.\u00a0 So as the technology is available and now tried and tested, I\u2019m prepared to give it a go.\u00a0<\/p>\n

The system draws warm moist air from the kitchen and bathroom and transfers the heat to fresh air that is ducted through in to the bedrooms.\u00a0 The unit runs at a low speed constantly supplying a flow of clean fresh air through the whole building. It will turn to full power when moisture from cooking and showering or even clothes drying is detected.<\/p>\n

I\u2019ll go in to more details at a later stage but for now it means I have to install the ducting in as discreet a way as possible.\u00a0 I\u2019m also minimising the potential noise, it\u2019ll have to be virtually silent so it doesn\u2019t bother anyone and I don\u2019t want cross talk from room to room via the ducting.<\/p>\n

\"Ventilation<\/a>

Ducting fitted where it wont be seen. Difficult in an old property.<\/p><\/div>\n

Being such an old house without the normal spaces to run ducting the design is fairly challenging.\u00a0 This post covers a quick look at the manifold duct splitter and silencer I had to make and install before fitting the dwarf wall in one of the attic rooms.<\/p>\n

\"Ducting<\/a>

The Splitter manifold with the three flexible ducts fitted<\/p><\/div>\n

The inlet is 60 x 220mm rectangular ducting that will be fitted above a false ceiling in the bathroom\u00a0 it then splits to three outlets to 4 inch insulated flexible ducting\u00a0 running to each of the attic bedrooms and to the living room.\u00a0 The flow rates in the flexible ducting will be low enough not to cause noisy turbulence.\u00a0 The flexible duct is sound absorbing and as they don\u2019t connect directly together like with tee joints the cross talk is reduced.\u00a0 The manifold box has sound absorbing insulation on the inside wall to further attenuate any noise.\u00a0 No way could I find a suitable commercial product to do all this in the space available.<\/p>\n

\"three<\/a>

The ventilation duct manifold showing the rectangular inlet and the 3 x 4" inch outlets<\/p><\/div>\n

Construction is simple and the materials cheap. I used sections of plastic ducting, these are easy to cut with a jigsaw and to shape using a heat gun.\u00a0 The joints are welded with plastic solvent screwed and sealed with a building adhesive (I think it\u2019s called \u201cstick like s**t\u201d, I\u2019m sure other brand are available).<\/p>\n

\"home<\/a>

Belt and braces approach to the construction. It will last !<\/p><\/div>\n

If you fancy making your own, these couple of pictures might give you some ideas, If you want to know more drop a comment on below and I\u2019ll see what I can do.<\/p>\n","protected":false},"excerpt":{"rendered":"

This is probable the first mention of the MHRV (Mechanical Heat Recovery Ventilation) so here\u2019s a quick run-down of the thinking behind it. The Cottage will be\u00a0a \u00a0holiday let, \u00a0if it was just us I probably wouldn’t \u00a0have gone to the time and expense of installing the system, we would open windows and turn on […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,5,206],"tags":[434,93,429,433,435,430,432,31,205,431,428,207],"class_list":["post-1114","post","type-post","status-publish","format-standard","hentry","category-ido-diy-stuff","category-ido-property-stuff","category-whitby-cottage","tag-custom","tag-diy","tag-ducting","tag-heat-recovery","tag-home-made","tag-manifold","tag-mhrv","tag-property","tag-renovation","tag-splitter","tag-ventilation","tag-whitby"],"_links":{"self":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/1114","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/comments?post=1114"}],"version-history":[{"count":3,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/1114\/revisions"}],"predecessor-version":[{"id":1121,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/posts\/1114\/revisions\/1121"}],"wp:attachment":[{"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/media?parent=1114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/categories?post=1114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/idostuff.co.uk\/blogs\/wp-json\/wp\/v2\/tags?post=1114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}