Why do you get condensation at home?
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NEW FEATURES
- Reduced in Size : 300 Wide X 625 High X 810 Long including Spigots
- EC fans as standard
- No combustible materials used in construction
- Sheet metal painted construction
- High temperature sensor shuts down make-up air runs exhaust fan to full speed
- High efficiency exchanger to 94%
- Greater than 82% when dry
- Microprocessor controller
- Optional IR remote control
- Optional summer bypass damper
Safe for you and your family:
- Not a system that can grow mould or organisms
- A system that can be cleaned and disinfected
- Non-combustible – no materials that support combustion or introduce toxins to your family – styrene vapour is toxic
- Smoke extract – a must have ! ! !
- Easy to clean (periodically) & change filters
- Easy to Operate
Normal Operation:
- The supply and extract air temperatures, Tin and Tout are monitored
- On start-up, if the difference between Tin and Tout is outside a (programmable) control band, the supply fan is throttled back until the control band narrows
- Strategy is set to avoid cold air feeds – the extract fan is unaffected
- The unit is fitted with a set of remote on/off contacts that can be wired back to a switch, motion sensor or timeclock as convenient.
- A set of contacts is also provided for extract fan boost, in the event of a contact closure from a humidity sensor or other contact closure.
Protection of occupants:
- If the extract temperature, Tout reaches a pre-determined high temperature (say 30 degrees), the system assumes a fire, over-rides any set-points and sets the extract fan to full fan speed to maximise smoke removal
- The supply make up fan is also shut down to prevent feeding fresh air to the fire
- A set of fire alarm contacts is also provided that can be used to activate the same procedure as outlined above
Heat Exchangers are normally sized in Cubic Meters/Hour (M3/hr)
Minimum ventilation from Building Regulations based on the area of the house and accupancy - minimum is 0.3 Liters /sec /M2 of floor area for a family of 4 + 4 Liters /sec for every additional occupantAssume a house of 100M2, multiply 0.3 = 30 liters / second, which, is very small at less than 10 M3/hr
BER is based on between one quarter and one third of an air change per Hour, which for 100M2 at 2.6M high is 90 M3/Hour.
Rules of thumb:
- 100M2 (1000 Sq Ft) ~ 90M3 /Hour
- 150M2 (1500 Sq Ft) ~ 130M3 /Hour
- 200M2 (2000 Sq Ft) ~ 180M3 /Hour
- 300M2 (3000 Sq Ft) ~ 260M3 /Hour
- 400M2 (4000 Sq Ft) ~ 350M3 /Hour
Running Costs:
Assumptions
- 200M3/hr of air moved - based on 1/3 air change, this equates to 230M2 house (2,300 Sq Ft)
- Indoor temperature in house is 24oC
- Average outdoor air temperature in Ireland is 12 degrees C
- Temperature difference averages 12oC for 24/7/365
Uncontrolled infiltration
- Cost is 0.81kW to heat 200M3 up 12oC
- Cost per kW from ESB (May ’09) is 14.55 + VAT @ 13.5% = 16.51 cent / kWhr
- Annual cost for uncontroller infiltration is: € 1,033
Dedicated Mechanical Ventilation
- Operating at, say 85% on average with dry efficiency of 82% and wet of 92%
- Assume 15% losses in ventilation, lost heat is € 155 to recover
- Based on say, 0.7W/l/s. which is equivalent to 75W, then annual running cost = € 108 pa.
Operating savings
- Based on 24/7/365 or 8,766 hours per year = € 1,033 - € 155 - € 108 = € 770
- For a 12oC temperature difference: € 770 pa
- For a 10oC temperature difference: € 640 pa
The Itho Eco4 mechanical ventilation heat recovery unit is an ideal solution especially for dwellings built to the highest standard of airtightness.
Eco4 incorporates a sophisticated counter-flow heat exchanger which can recover up to 93% of the heat from the exhaust air.
Itho Eco 4
- Top ranked on SAP Appendix Q
- Combi flow whole-house vent system
- 93% efficient.
- Summer bypass valve
- Well insulated / Compact unit
- Domestic & commercial
- Special cooker hood application (optional)
Heat Recovery Ventilation Systems (HRV)
Pre-heated, filtered, fresh air in the winter, cool and clean air in the summer, a balanced ventilation system is key to achieving this. As we look to seal up our homes with insulation so using a good home ventilation system becomes all the more important. Increased is the need to ensure fresh clean air can enter our homes and that stale, impure air can be expelled from internal spaces. While insulation will prevent heat loss in our homes it will also retain unwanted air and here home ventilation can help.
Where it really gets smart is the heat recovery bit that, in the process of expelling the unwanted air, warm air is extracted – via heat exchangers - from that exhausted air flow and in turn used to heat (or cool) the incoming clean air!
How Heat Recovery Ventilation Works
Unlike air exhaust and other mechanical ventilation systems i.e. bathroom ventilation fans or kitchen range hoods, an energy, or heat recovery ventilator not only gets rid of air inside your home, it replaces it with fresh filtered and preheated outdoor air. As the indoor air flow is sent outside, a heat exchanger inside the ventilator extracts the heat and uses it to preheat the incoming fresh air flow. This balanced ventilation system ensures that the moist contaminated exhaust air is continuously replaced with temperature controlled filtered fresh air creating controlled and balanced ventilation.
Example:
The air inside a house should be “exchanged” with fresh air approximately 12 times in a 24 hour period. The fact is that on average a house has only five – or fewer – air exchanges in a day. Alternatively, a good heat recovery ventilation, or HRV system will be designed to keep the air within your home or place of business fresh while venting out the old air and in doing so getting rid of excess moisture left in the air (through heat reclaim ventilation) after cooking, cleaning etc. to reduce the build-up of condensation and ultimately preventing the growth of mould and mildew within the building. All the while a HRV system will filter all incoming air to remove contaminants including dust and pollen. Your HRV system will also keep your home free from unwanted odours or VOCs.
One of the main features of a heat recovery ventilation, or HRV system, is its filter, and a good HRV system takes all contaminants from the incoming air and lets only fresh air into your home or place of business.
Heat Recovery Ventilation (HRV): the Right Solution in Ireland and the UK
Stagnant indoor air can quickly be contaminated with pollutants like dust, mould, pollen, radon and even carbon monoxide. Heat recovery ventilation can remedy this potentially unhealthy situation, which for instance helps sufferers from asthma – but it also lowers your utility bills.
Benefits of heat recovery ventilation:
- Relief of allergy problems
- Controlled inlet of heated fresh air
- Exhaust air evacuation
- No draft sensation – “no holes in the walls”
- Reduces heat loss
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HRV keeps Ireland homes warm in winter and cool in summer
Your HRV, or heat recovery ventilation system can also provide free heat during the colder months, taking warm air from your roof space and, by reversing the process, keep your home or place of business cooler in the summer months. Whatever the vagaries of Ireland’s, a HRV system will be designed with a control system that allows you to change, as you see fit, the temperature of the heat or cooling input in case of sudden unseasonable warmth or cold.
Cost of installing a heat recovery ventilation system
The average cost of installing a heat recovery ventilation system, depending on the specification, is between €4,000 and €5,000.
Heat Recovery Ventilation Systems (HRV)
Pre-heated, filtered, fresh air in the winter, cool and clean air in the summer, a balanced ventilation system is key to achieving this. As we look to seal up our homes with insulation so using a good home ventilation system becomes all the more important. Increased is the need to ensure fresh clean air can enter our homes and that stale, impure air can be expelled from internal spaces. While insulation will prevent heat loss in our homes it will also retain unwanted air and here home ventilation can help.
Where it really gets smart is the heat recovery bit that, in the process of expelling the unwanted air, warm air is extracted – via heat exchangers - from that exhausted air flow and in turn used to heat (or cool) the incoming clean air!
How Heat Recovery Ventilation Works
Unlike air exhaust and other mechanical ventilation systems i.e. bathroom ventilation fans or kitchen range hoods, an energy, or heat recovery ventilator not only gets rid of air inside your home, it replaces it with fresh filtered and preheated outdoor air. As the indoor air flow is sent outside, a heat exchanger inside the ventilator extracts the heat and uses it to preheat the incoming fresh air flow. This balanced ventilation system ensures that the moist contaminated exhaust air is continuously replaced with temperature controlled filtered fresh air creating controlled and balanced ventilation.
Example:
The air inside a house should be “exchanged” with fresh air approximately 12 times in a 24 hour period. The fact is that on average a house has only five – or fewer – air exchanges in a day. Alternatively, a good heat recovery ventilation, or HRV system will be designed to keep the air within your home or place of business fresh while venting out the old air and in doing so getting rid of excess moisture left in the air (through heat reclaim ventilation) after cooking, cleaning etc. to reduce the build-up of condensation and ultimately preventing the growth of mould and mildew within the building. All the while a HRV system will filter all incoming air to remove contaminants including dust and pollen. Your HRV system will also keep your home free from unwanted odours or VOCs.
One of the main features of a heat recovery ventilation, or HRV system, is its filter, and a good HRV system takes all contaminants from the incoming air and lets only fresh air into your home or place of business.
Heat Recovery Ventilation (HRV): the Right Solution in Ireland and the UK
Stagnant indoor air can quickly be contaminated with pollutants like dust, mould, pollen, radon and even carbon monoxide. Heat recovery ventilation can remedy this potentially unhealthy situation, which for instance helps sufferers from asthma – but it also lowers your utility bills.
Benefits of heat recovery ventilation:
- Relief of allergy problems
- Controlled inlet of heated fresh air
- Exhaust air evacuation
- No draft sensation – “no holes in the walls”
- Reduces heat loss
Dim lights Download Embed Embed this video on your site
HRV keeps Ireland homes warm in winter and cool in summer
Your HRV, or heat recovery ventilation system can also provide free heat during the colder months, taking warm air from your roof space and, by reversing the process, keep your home or place of business cooler in the summer months. Whatever the vagaries of Ireland’s, a HRV system will be designed with a control system that allows you to change, as you see fit, the temperature of the heat or cooling input in case of sudden unseasonable warmth or cold.
Cost of installing a heat recovery ventilation system
The average cost of installing a heat recovery ventilation system, depending on the specification, is between €4,000 and €5,000.
Provides a continuous air change, replacing stale moisture laden air with fresh, warmed air from outside.
These units are easy to fit and provide an effective solution to stale, musty indoor air condensation and mould growth problems in any room in which they are fitted.
Benefits
- Recovers up to 86% of exhausted heat
- Night sensor allows bedroom installation
- Installation can be carried out completely from the inside
- 5 year guarantee on motor
- Manual boost mode can remove excess humidity in bathrooms
- Machine washable filter
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Controlling humidity is a determining factor for a healthy building and for healthy occupants.
Small quantities of vapour are enough to cause a direct and indirect effect on the occupants health and on the building. A relative moisture ranging between 40 and 60 % is essential to the correct functioning of the respiratory system, then too much moisture turns out to be harmful for the building and occupants. In liquid or vapour form, water appears as the first cause of problems in the building sector.
Constant Pressure VPH2 Extract Fan for up to 6 wet rooms
Humidity Sensitive BXS Extract Grille for Toilets with built in PIR Control
Constant Pressure V2A Extract Fan for up to 2 wet rooms
Humidity sensitive control, individual room ventilation, fresh air.
Ventilate Right
This is the concept that directs the design of the Aereco products. So the "passive" components of the ventilation system are controlled and activated in various ways, according to the needs in each room and each occupation. According to the nature of pollutants and needs, the airflow can be adapted to the relative humidity, manually activated, activated by the presence or by the movement detection.
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How humidity sensitive control works
The “passive” components of the ventilation system are controlled and activated in various ways, according to the needs in each room. The airflow can be adapted to the relative humidity, manually activated, activated by the presence or by the movement detection.
The humidity sensitive technology is applied to the air inlet and to the air extract units located in the rooms where humidity reveals the indoor pollution level. The cross sectional area of the ventilation units is controlled according to the humidity in the room. In order to keep it at an optimum level working all the year long, the sensor automatically takes into account the external temperature.
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Humidity Sensitive EHT Wall Inlet |
Constant Pressure VAM Extract |
Humidity Sensitive EHA window |
Advantages of Aereco
- • Lifetime guarantee on humidity control
- Fan power down to 15W
- Energy consumption equivalent to an 80% efficient heat recovery system
- Virtually maintenance free
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Condensation dampness is still a troublesome recurring problem in homes. If you can cure condensation dampness and mould growth, the rewards are enormous by improving the health of the occupants and achieving reduced maintenance costs.
The loft mounted unit is a sophisticated whole home ventilation and condensation control unit for homes with a loft space.
The unit gently ventilates the home from a central position on the landing in a house or central hallway to transform a stagnant, stale atmosphere into a fresh, healthy, condensation free environment.
Positive Ventilation is also able to tackle:
- CO2
- Radon
- Dust & Dust Mites
- Tobacco smoke
- Nasty odours
