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Heat Recovery Ventilation HRV Full System HRVU DHV-15B BPH with Auto Bypass and Pre Heater – Unit Only or Kit for 2 to 10 Rooms – High efficiency two-way heating and moisture control by Boulder Developments

£824.13£1,136.54

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SKU: BHFP-HRVU-20BBPPHSYS-90 Categories: ,

Heat Recovery Ventilation

Product Description

  • Heat Recovery Ventilation Unit designed and manufactured by Boulder Developments, available in a complete kit for domestic and commercial installations for 2-10 rooms, or just the unit can be purchased on its own. This unit comes with both the pre-heat and auto bypass functionalities. The auto bypass function allows the unit to bypass the heat exchanger, meaning the heat energy isn’t transferred to the incoming air, making it perfect for use in the summer. The pre-heat function warms the cool air taken in from outside in addition to the heat exchanged from the internal air.
  • Save up to 75% on energy bills with this high-efficiency, eco-friendly system which recovers heat and extracts moisture in an exchange system that uses the difference between internal and external temperatures to minimise energy usage and operates at 90% efficiency.
  • Continuously supplies clean, fresh, filtered air, whilst simultaneously extracting pollutants, so your environment is cleaner and free of harmful pollens and dust. Eliminates the presence of condensation which fights the presence of harmful damp, rot and moulds in wet areas.
  • Gain full control of your system with the included controller which operates the fan at three speeds; 110m3h, 130m3h and 150m3h. Install with ease with our kit which includes everything required for a full installation, including vents, grilles and ducting.
  • Manufactured in the UK to the highest UK and European standards, this product is CE certified.

 

The DHV-15B BPH Heat Recovery Ventilation Unit (HRVU) by Boulder Developments is designed for use with Heat Recovery Ventilation systems (HRV or MHRV): a highly efficient way to simultaneously supply clean, fresh air to your home whilst extracting moisture and pollutants. Available in a kit, or just on its own, the HRVU operates at 90% efficiency and minimises energy usage, saving on bills through the use of internal and external temperature differences. This unit comes with both the pre-heat and auto bypass functionalities. The auto bypass function allows the unit to bypass the heat exchanger, meaning the heat energy isn’t transferred to the incoming air, making it perfect for . The pre-heat function warms the cool air taken in from outside in addition to the heat exchanged from the internal air.

The DHV-20B can be operated at three fan speeds (110m3h, 130m3h and 150m3h) using the included controller, and can be supplied on its own or with a complete kit for 2-10 rooms. The system contains a high quality aluminium heat exchanger and kits are complete with high quality, insulated acoustic ducting, 100mm mushroom valves, stylish external wall grilles, fasteners and tee joints/connectors where necessary.

Auto Bypass and Pre-heat Functionality

This unit comes with both the pre-heat and auto bypass functionalities. The auto bypass function allows the unit to bypass the heat exchanger, meaning the heat energy isn’t transferred to the incoming air. The pre-heat function warms the cool air taken in from outside in addition to the heat exchanged from the internal air.

Heat Exchanger

Aluminium High Performance Heat Exchanger

High 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:

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!

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

Rooms
Ducting (m)
Air Valve
External Grills
Tees
Fasteners
1
10
2
2
0
8
2
20
2
2
0
8
3
30
3
2
1
12
4
40
4
2
2
16
5
50
5
2
3
20
6
60
6
2
4
24
7
70
7
2
5
28
8
80
8
2
6
32
9
90
9
2
7
36
10
100
10
2
8
40

Unit Comparison Chart

Model Number
DHV-15B
DHV-20B
DHV-25N
DHV-35N
DHV-50N
Fan Motor Power (W)
60/50
68/52
105/100/80
140/125/115
190/175/150
Air Volume (High/Mid/Low M3/h)
150/130/110
200/170/150
250/220/160
350/310/270
500/450/360
Noise (dBA)
38
38
35
36
38
Unit Dimensions (mm)
1075 x 784 x 270
1075 x 784 x 270
1075 x 784 x 270
1075 x 924 x 270
1130 x 1106 x 312
Package Size (mm)
1125 x 830 x 345
1125 x 830 x 345
1125 x 830 x 345
1125 x 985 x 345
1190 x 1150 x 386
Spigot Diameter (mm)
100
150
150
150
200
Weight (kg)
31
32
34
39
55

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!

Can’t find what your looking for? Contact us, and we can advise on the most efficient system and unit for you!

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.