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Keith Huntington
Keith Huntington
on Maximising Thermal Efficiency
Architectural Consultant

Keith Huntington of EcoRate Ltd is a registered architect involved in passive solar design and the objective analysis of buildings using thermal simulation modelling.

23 March 2017

Selecting Home Heating Systems that Meet Occupant Liveability Requirements

Heating a house is not as simple as just fitting a heat pump to a convenient wall. The most important first step is to develop a heating and cooling Performance Brief for the residence.

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24 February 2017

New Amendment to NZBC H1 Energy Efficiency

A new edition (Fourth) of the New Zealand Building Code Clause H1 (Energy Efficiency) has been published. It became effective on 1st January 2017.

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23 November 2016

Is Technology or Forestry the Answer?

Perhaps neither when it comes to attempting to control climate change. Perhaps it will only be by the sum of the small actions of individuals that there may be some hope of progress.

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18 August 2016

Do Internal Walls Need Insulation?

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The New Zealand Building Code clause H1 (Energy Efficiency) requires minimum levels of insulation only to the exterior of the inhabited areas of a house. Is this enough?

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24 June 2016

More Sophisticated Thermal Performance Ratings for Windows

The original WERS (Energy Efficiency Rating Scheme) for windows has been supplemented with WEERS — a more targeted system which considers, in more detail, the factors which influence the performance of the 'window element' of an exterior wall.

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26 April 2016

How Can 'Network Energy' Heated Concrete Floors Be insulated?

When the thermal mass of a concrete floor is being used to assist with the heating (or cooling) of a house, in my opinion there are two distinct approaches to designing the insulation of the slab.

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20 January 2016

The Paris Summit: Implications for the NZ Building Industry

Will the aspirational global temperature rise targets agreed to at the 2015 United Nations Climate Change Conference have any implications for the future, or will it just be 'business as usual'?

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19 November 2015

Homestar Expands Range of Homes Assessed

Apartments and terrace buildings are now included in this comprehensive residential sustainability rating scheme which is rapidly being adopted throughout the country. 

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17 September 2015

Does More Thermal Mass Mean a Warmer Building?

Thermal Mass is often presented as the magic ingredient to ensure that the passive solar gain within a building is maximised, but the importance and usefulness of Thermal Mass can vary depending on the purpose and location of a space, along with glazing and insulation. 

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21 August 2015

Thermal Drapes: Do They Work as Insulation?

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Why is it that single drop 'Thermal Drapes' are considered to be the solution to retaining heat within a house during winter, when lined curtains of ordinary fabrics have been used in the past?

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