Heat Recovery Ventilation
SELECT HOW MANY ROOMS
- Let us know how many rooms your system is for and we’ll supply you with all the parts! Call 01636 639900 for advice.
Heat Exchanger
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Aluminium Heat ExchangerHigh quality aluminium heat exchanger, transfers heat to the incoming air supply with an efficiency of 90%. This may however create some condensation due to the temperature difference between the incoming and out going air. As such these units come with a built in condensate tray that needs to be connected to a condensation drain |
Full System Parts
Our full systems come with the following parts:
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100mm Ducting
High quality insulated acoustic ducting ensures your heat gets delivered exactly where you need it. |
Air Valve
These 100mm mushroom valves are perfect for balancing air flow throughout your HRVU system. |
External Wall Grills
Stylish grills for the outside of your house. Ideal for stopping unwanted water from entering your system! |
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100mm Tee Joints
Used for ducting off from the incoming or outgoing air circuit to each room / space. |
Fasteners
Easy to use ties for fastening your ducting securely in place, making installation an absolute breeze. |
Controls
Our heat recovery units come with a controller, however we have several other controllers available: Click Here |
Full System Part List
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Rooms
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Ducting (m)
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Air Valve
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External Grills
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Tees
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Fasteners
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|---|---|---|---|---|---|
|
1
|
10
|
2
|
2
|
0
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8
|
|
2
|
20
|
2
|
2
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0
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8
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3
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30
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3
|
2
|
1
|
12
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|
4
|
40
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4
|
2
|
2
|
16
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|
5
|
50
|
5
|
2
|
3
|
20
|
|
6
|
60
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6
|
2
|
4
|
24
|
|
7
|
70
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7
|
2
|
5
|
28
|
|
8
|
80
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8
|
2
|
6
|
32
|
|
9
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90
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9
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2
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7
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36
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|
10
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100
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10
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2
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8
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40
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Unit Comparison Chart
| Model Number |
DHV-15B
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DHV-20B
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DHV-25N
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DHV-35N
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DHV-50N
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DHV-100N
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|---|---|---|---|---|---|---|
| Fan Motor Power (W) |
60/50
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68/52
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105/125/115
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140/125/115
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190/175/150
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450/375/330
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| Air Volume (High/Mid/Low M3/h) |
150/130/110
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200/170/150
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250/220/160
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350/310/270
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500/450/360
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1000/780/650
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| Noise (dBA) |
38
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39
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35
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36
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38
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41
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| Unit Dimensions (mm) |
746x507x240
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746x507x240
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1075x784x270
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1075x924x270
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1130x1106x312
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1488x1246x396
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| Package Size (mm) |
805x575x315
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805x575x315
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1125x830x345
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1125x985x345
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1190x1150x386
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1545x1300x470
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| Spigot Diameter (mm) |
100
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150
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150
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150
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200
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250
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| Weight (kg) |
19
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19.5
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33
|
38
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54
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89
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HRVU Guide
Heat Recovery Ventilation (also known as HRV, or mechanical MHVR) is an energy recovery system whereby a household or room is provided with fresh air from outside. Stale air from inside is exhausted after the heat from it has been transferred to the fresh incoming air via a heat exchanger.
As buildings are made efficient they are intentionally made more air tight, and consequently they are less well ventilated. Trickle vents or simply opening a window provide fresh air, but unfortunately heat will be lost in the winter and gained in the summer. HRV systems provide a household with climate control and promote energy efficiency!
Please click here to read our full “easy install” guide.
Looking for a quote? Send your plans, with dimensions and any specific requirements to admin@boulderdevelopments.com
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| This is an example of an installation with one inlet or outlet per room. With this set up, you would extract from your wet rooms (kitchen, bathrooms)& push into your dry rooms (Living rooms, bedrooms). | This is an example of an installation with two inlets / outlets per room. With this set up, you would extract and push into each room. Normally the fresh air vent would be placed as far away from the door as possible. |
