Heating System 1

UNIVERSITY

OF DUNDEE

H E AT I NG S Y S TE M D E S I G N F O R F L AT B EG21002 – ENGINEERING DESIGN AND COMMUNICATION A L A N M C N E I L , PA U L O ’ M A H O N E Y & C H R I S T O P H E R TAY L E R

H E AT I N G S Y S T E M D E S I G N F O R F L AT B

ENGINEERING DESIGN AND COMMUNIC ATION

CLIENTS REQUIRMENTS

 A circulated hot water system running from the mains gas supply  The system should be able to supply domestic hot water at all times  Rooms are to be temperature controlled individually by means of thermostatic radiator valves  System design to conform to British Standard BS 5449:1990 and be calculated by ourselves S U G G E S T E D S O LU T I O N

 Installation of an appropriate combination boiler (specification to follow)  Appropriately sized panel radiators with adequate thermal output and exposed pipe work. Please note that radiators will be referred to as emitters.  Pipe work will be exposed 15mm copper to keep costs as low as possible.  Heated towel rail to be installed in bathroom for improved utilisation of space.  Box requirements considered negligible and therefore no emitter to be installed.  Kitchen determined to provide sufficient heat and therefore only boiler to be installed in this room. OV E R A L L C O S T O F P R O J E C T

Cost of components: £1119.05 Cost of labour: £2250.00 Total Cost of Work: £3369.05

Summary of work follows.

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C A L C U L AT E D R E Q U I R M E N T S F O R E A C H R O O M

These values merely indicate the values required for each individual emitter. Overall boiler capacity required is further to these requirements due to domestic hot water requirements. All values were calculated using minimum temperature values provided by BS 5449:1990 Due to various heat sources already present in the kitchen an emitter will not be installed. It was also not deemed necessary to install a heater into the box room. Emitter Requirements Room Living Room Bathroom Bedroom 1 Bedroom 2 Hallway

Heating Requirement (BTU) 9155 2888 4543 3471 2024

Heating Requirement (Watts) 2682 846 1331 1017 593

Table 1: Emitter Requirements. B O I L E R S P E C I F I C AT I O N

Calculated output requirement for system, taking into account building materials, domestic water needs and all temperature requirements was 12kW. Boilers of this size are however uncommon so the most appropriate system was selected. For all related drawings, refer to appendix 1. For break down of cost please refer to appendix 2.

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Appendix 1

Appendix 2

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COMPONENTS LIST AND PRICE

All prices are including VAT and are purchased from B&Q unless otherwise stated. Component

Information

Unit Cost

No. Required

Total Cost for Components

Boiler

Garda HE 24kW Condensing Combi Boiler (with flue)

£499.00

1

£499.00

Emitter – Living Room

Kudox Double Radiator White (9370 BTU)

£114.90

1

£114.90

Emitter - Bathroom

Acova Cala Towel Drying Radiator White (880W)

£139.00

1

£139.00

Emitter – Bedroom 1

Kudox Double Radiator White (5270 BTU)

£49.84

1

£49.84

Emitter – Bedroom 2

Kudox Double Radiator White (3514 BTU)

£37.16

1

£37.16

Emitter - Hallway

Kudox Single Radiator White (2204 BTU)

£29.56

1

£29.56

Emitter Valve Kits

Thermostatic Radiator Straight Valve/Lockshield 655012 Chrome Plated

£8.98

5

£44.90

Streamline Black Label EN 1057 Copper Tube X015L3 15mm x 3m

3m @ £6.54

12

£78.48

Thermostatic

15mm Copper Piping

1

Wall Mounting Brackets for 15mm Pipes

CP Screw On Pipe Bracket Flat 15mm Pack of 10 (Screwfix)

10 @ £5.99

8

£47.92

22mm Copper Piping (incoming mains to boiler)

Streamline Black Label EN 1057 Copper Tube X022L2 22mm x 2m

2m @ £9.88

2

£19.76

Wall Mounting brackets for 22mm Pipes

Screw On Pipe Bracket Flat 22mm Pack of 5 (screwfix)

5 @ £3.99

1

£3.99

Fixing Screws For 15mm & 22mm Pipe Brackets

Traditional Brass Countersunk Slotted Screws 8 x 1¼" Pack of 100 (screwfix)

£3.76

1

£3.76

Incoming Mains Valve to Boiler

Compression 22mm

£4.98

1

£4.98

Shutoff

Gatevalve

15mm copper pipe t-joint

Endfeed Equal Tee 15mm

£0.68

6

£.4.08

15mm copper pipe elbow

Solder Ring Street Elbow 15mm

£1.28

10

£12.80

15mm join

B&Q Plumbeasy Straight 15mm

£1.18

24

£28.32

£0.60

1

£0.60

Copper

PTFE tape

straight

PTFE Tape

Metal

2

Total Cost of Components: £1119.05

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LABOUR COSTS

Based on 2 men doing all work @ £50 p.h. Time (Hours)

Work Pipe Work and Heater Mounting

25

Boiler Installation

15

Masonry Work (flue install. Etc.)

5

Finishing Work (cleaning, operational check)

5

Contingency

5

Total

45

Total cost of Labour £2250 OV E R A L L C O S T O F P R O J E C T

Cost of components: £1119.05 Cost of labour: £2250.00 Total Cost of Work: £3369.05