- A Passivhaus has a low heating demand.
- High levels of insulation. Minimal thermal bridges.
- Passive solar gains and internal heat sources.
- Excellent level of air tightness.
- Excellent indoor air quality. This is done via by a whole house heat recovery mechanical ventilation system.
NuTech patented Solar Passive House Solar Heating System.
In a NuTech Solar Passive House the first thing you notice is the number of solar panels. You want to collect as much solar energy as possible. So you will find you will find more solar panels installed on the roof than a normal solar hot water heating system. The patented NuTech Solar Enhanced Ventilation (SEV) heats hot water and gives solar assisted air heating to rooms in a home.
Low levels of solar radiation are found in winter months in Ireland. As a result in most cases the solar energy collected would be to weak to heat water in a solar tank. So a normal solar hot water heating system would not work.
In winter the SEV solar panels will collect this low grade solar energy. The low grade solar energy is then sent to a air handling unit. The SEV System then sends out warmed air at 28C to the house. This warms the air in the home. The heating demand is reduced. As a result it now takes less energy to heat your home. So this saves you money and helps to reduce your heating bill.
NuTech Solar Passive House and Indoor air quality.
NuTech Solar Passive House and Air tightness.
Heat Loss via Thermal Bridging in a Solar passive House.
Minimal Thermal Bridging is needed for Passivhau houses. Thermal Bridging can cause heat loss and condensation in the home. It can be found in windows, walls and roof sofits. So it is no surprise that Thermal Bridging is an important factor in the DEAP analysis of a passive house.
A NuTech Solar passive House is built via a timber frame company like KTF Ltd. They use a insulation system which reduces the amount of Thermal Bridging . Future Frame is a Timber Frame System that will make you home air-tight and low energy. Future Frame Passive has a thermal bridging factor of .02.
A technical comparison of the NuTech Solar Passive House and Traditional Passive House in Ireland
1: The External Wall U-Value o 0.16 W/m2.K . A timber frame will have a reasonably sized stud. This then has internal insulation fixed to it. This will reduce the effect of thermal bridging.
2: The Window U-Value 1.2 W/m2.K . To reduce costs you can fit double glazing. This is less expensive than triple glazing windows.
3: The level of Air Infiltration 1.0 ACH at 50 Pa. The Sev integrates the energy from the solar array into the HRV system. This achieves less than 1.0 ACH at 50 Pa Ø.
4: Solar energy. The patented NuTech Solar Enhanced Heating,hot water system (SEH) heats hot water and rooms in a home.
NuTech Passive Solar House offers cost and performance benefits.
A NuTech Passive Solar House will achieve the same BER rating of Passiv Haus Institute design house a at a lower cost.