Warm Blog

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Intake Location Calculation

Posted by on Jun 20, 2017 in news | Comments Off

Intake Location Calculation

On many projects we need to decide how close we can locate an air intake to a polluting exhaust or boiler flue. This workbook is for calculating the minimum recommended distances between intake and exhaust openings and boiler flues using the equation provided in ‘Annex A of BS EN 13779 Ventilation for non-residential buildings-Performance requirements for ventilation and room-conditioning systems’. Note that this calculation does not take into account directional louvres. Click to download: Intake Location Calculation Workbook...

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PHPP WARM Results Sheet v6.06 Released

Posted by on Nov 25, 2016 in news | Comments Off

PHPP WARM Results Sheet v6.06 Released

Dear all, Version 6.06 of our results sheet has just been released – now with added goodness! Click to download:   PHPP WARM Results Sheet v6.06 (169.0 KiB, 3,367 hits) The biggest update is a button that automates the process of recording the current PHPP results in the “revision history” table. The sheet is also now compatible with PHPP 9.6. Important note: the button uses a macro to do its magic. Therefore, it will only work if the PHPP you are using is saved as a macro-enabled spreadsheet (.xlsm). However, you...

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The Truth is Out There (Window Specifications)

Posted by on Aug 15, 2016 in Guides | Comments Off

The Truth is Out There (Window Specifications)

(Post by Karl and Liam)   Glazing Frame Evidence Required for Passivhaus.pdf (97.9 KiB, 1,071 hits)   Glazing Frame Specifications for Passivhaus.xls (87.0 KiB, 945 hits) In a darkened basement there is a series of files, full of mystery and unanswered questions. The investigations held within these files are frequently hampered by a wall of secrecy which surrounds the subject matter. At every turn there seem to be half-truths and prevarication, with questions being sidestepped or overlooked. However, the investigators...

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Free advice! show us your designs and we’ll improve the energy performance

Posted by on Jun 27, 2016 in news | Comments Off

We know how to make your buildings more energy efficient without costing you more to build (in fact a lot of our suggestions are likely to make it easier or cheaper) Whether you’re going for full Passivhaus, or just want to make an improvement we can help.   Why are we doing this? We understand spending money in the early days of a project is usually at risk, but this is where the greatest impact (and true value engineering) can take place.  So we’re doing it for free, with no obligation to employ us later either. Just send us an explanation...

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PHPP WARM Results Sheet v6.03 Released

Posted by on Mar 9, 2016 in news | Comments Off

PHPP WARM Results Sheet v6.03 Released

Dear all, We have released version 6.03 of the PHPP WARM Results Sheet, which can be downloaded here:   PHPP WARM Results Sheet v6.06 (169.0 KiB, 3,367 hits) The biggest improvement is that it now works with PHPP 8.4. The other changes are minor, and have all been focussed on making it look nicer . Hope you like...

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PHPP WARM Results Sheet v6.01 Released – PHPP9 Compatible!

Posted by on Dec 2, 2015 in news, Of interest | Comments Off

PHPP WARM Results Sheet v6.01 Released – PHPP9 Compatible!

Dear all, We are very proud to announce the latest release of our popular results sheet. This release represents a big overhaul, and includes lots of new features, as well as improvements to usability. It is compatible with PHPP8 and PHPP9. Download link:   PHPP WARM Results Sheet v6.06 (169.0 KiB, 3,367 hits) [Edit 02/12/15: updated to v6.02] The biggest improvement is the addition of 3 new sheets that show a summary of the key data in the PHPP. Hope you find it really useful. Liam McDonagh-Greaves,...

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New PHPP Guide: Formulae to Make Solid Shading Transparent

Posted by on Nov 9, 2015 in Guides, news, Of interest | Comments Off

New PHPP Guide: Formulae to Make Solid Shading Transparent

Dear all, We have published a guide to applying a transparency factor to objects in the shading sheet in your PHPP. Let’s say you are modelling a line of trees in your PHPP. The spreadsheet assumes that they are completely opaque, but this isn’t true – some degree of light always gets through. This guide shows you how to apply some transparency to those trees, making your shading more accurate. It is also useful for modelling non-solid fences, brise-soleils and pergolas. Download link:  PHPP Formulae to Make...

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UK Passivhaus Conference

Posted by on Nov 6, 2015 in news | Comments Off

UK Passivhaus Conference

  Pete recently presented at the UK Passivhaus Conference talking about our experience of Passivhaus on a large scale.  . . . The full talk is here but the key principals are: Massing: Is the thermal envelope really a simple shape? Fenestration: Dominates PHPP but use daylight criteria to size windows Ventilation: Consider central systems, early design input absolutely crucial Distribution losses : Significant impact on primary energy and overheating, standard solutions don’t work   He also sat on the panel at the end of the day...

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Why quality matters

Posted by on Aug 14, 2015 in news | Comments Off

The recent article by Cartwright Pickard Architects in the Architects Journal, entitled ‘Are our homes making people sick?’ is a welcome addition to the research on comfort within new homes. Their findings, based on internal monitoring of environmental conditions, energy use, occupant behaviour and build quality checks, should make uncomfortable reading for everyone in the sector. The performance gap noted in a number of other studies is sadly replicated here. Ventilation systems were found to be poorly installed, commissioned and maintained,...

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SPACE

Posted by on Aug 11, 2015 in news | Comments Off

SPACE

    As an office where everyone generally arrives to work on a bike, we’re acutely aware of the dangers of cycling on busy roads. We thought we’d share this video, as the messages it’s presenting need as wide an audience as possible.      

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