Sava EDGE.

Welcome to Sava EDGE; a searchable, online collection of practical and technical information and other resources for residential property professionals

February 18th, 2018

LPG and the Effects on Ratings

Why is the SAP rating so low when entering LPG? LPG (bulk and bottled) is much more expensive than mains gas, this has a dramatic effect on the SAP rating. The table below…

February 17th, 2018

Japanese Knotweed

Japanese Knotweed (Fallopia Japonica) is a perennial and, on the face of it, an elegant and attractive bamboo-like plant. However, in the past few years, it has become recognised as one of the…

February 17th, 2018

Internal and External Wall Insulation

Internal and External wall insulation The thermal performance of heat loss walls of any construction can be improved by installing an effective thickness of good insulating material on the inside (internal insulation) or…

February 17th, 2018

Inside Gas Meters (Part 2)

Following on from ‘inside gas meters (part 1), some readers have raised a number of interesting issues. One reader, who used to be a gas engineer under the CORGI scheme, thought surveyors would…

February 17th, 2018

Inside Gas Maters (Part 1)

Introduction As part of the service to surveyors who are members of the SAVA Scheme, the scheme takes over the management of a complaint that is likely to turn into a claim against…

February 17th, 2018

Insect Attack

People can get very worked up if they find evidence of “woodworm” in their property because they worry that it will spread and impact on the structural timbers of their homes. It is…

February 17th, 2018

HS2 and Valuations

What valuers need to consider The HS2 rail link has been described as one of the most ambitious infrastructure projects this century, not just because of the huge expenditure, but because of the…

February 17th, 2018

How a Heat Pump Works

How does a heat pump work? The image below shows the basic components of a heat pump.  The compressor is used to compress the refrigerant vapour and in doing so raises its temperature…

February 17th, 2018

Home’s Heat Demand (kWh Year) for Heat Pumps

The Space Heating kWh per year figure in the “your home’s heat demand” section of the EPC gives different results for SAP default heat pumps and heat pumps selected from the product characteristics…