Spares

McDonald Engineers provides an extensive range of hot water cylinder spares and parts including vented and unvented cylinder spares. We also have thermal stores spares, relief valves, immersion heater spares, pressure and temperature relief valves and potable expansion vessels to ensure that your hot water system continues to operate efficiently. For the replacement of McDonald Engineer's hot water heater parts, we recommend using only our genuine products. Our products are excellent for trade installations and can be used for commercial premises or domestic homes.

Order McDonald Engineers Hot Water Cylinder Parts & Spares

To order your replacement parts and spares, simply order online or contact our sales team on 01592 611123 who will be delighted to assist you with your requirements. Ex stock and next day delivery available. We accept most credit or debit payment cards.

Expansion Vessel

2-300 Litre Nitrogen Filled Expansion Vessel

SKU:
WU2EV

£58.80

Dual Thermostat Controller

Dual Thermostat Controller

SKU:
WUEDAC

£86.10

28mm Single Check Valve

SKU:
WUVC1

£54.90

22 x 28mm Compression Tundish

22 x 28mm Tundish - Compression

SKU:
WUTUND1

£39.30

15 x 22mm Tundish - Straight

15 x 22mm Tundish - Straight

SKU:
WUTUND

£31.50

28mm Motorised Zone Valve

28mm Zone Valve

SKU:
WUEMZV28

£113.40

22mm 2 Port Zone Valve

22mm Zone Valve

SKU:
WUEMZV

£90.00

Cold Water Ctrol Pack 3 1 1/4"

Cold Water Control Pack 3

SKU:
WUCWCP3

£230.40

1 1/2" PRV, Gauge, Check Valve

Cold Water Control Pack 4

SKU:
WUCWCP4

£285.00

2" PRV and 2" Check Valve

Cold Water Control Pack 5

SKU:
WUCWCP5

£370.80

22mm Anti-Vacuum Valve

22mm Anti-Vacuum Valve

SKU:
WUAVV

£35.40

1" Anti-Vacuum Valve

1" Anti-Vacuum Valve

SKU:
WUAVV1

£97.80

22mm Y Strainer Comp x Comp

22mm Y Strainer Comp x Comp

SKU:
WTYS

£33.84

ACL Wiring Centre LCW1

ACL Wiring Centre LCW1

SKU:
WTWC

£31.50

Thermostatic Mixing Valve 22mm

Thermostatic Mixing Valve 22mm

SKU:
WTTMV

£129.00

Danfoss FP715 Programmer

Danfoss FP715 Programmer

SKU:
WTPROG

£82.20

DAB EVOSTA Pump

DAB EVOSTA Pump

SKU:
WTP

£183.60

2" Dial Thermometer

2" Dial Thermometer

SKU:
WTHERM

£31.50

22mm Check Valve Compression

22mm Check Valve Compression

SKU:
WTCV

£27.60

IM-TC2 Cylinder Thermostat

THERMflow Thermostat

SKU:
WTCT

£66.60

3/4" Check & Exp. Valve 3.5 B

3/4" Check & Exp. Valve 3.5B

SKU:
WSUVER

£70.50

PRV+Bal.Cold @ 2.1B + Strainer

PRV+Bal.Cold @ 2.1B + Strainer

SKU:
WSUPRV

£105.60

7" High Limit Stat for 3kW IH

7" High Limit Stat for 3kW IH

SKU:
WSTATH7

£35.40

11" High Limit Stat for 3kW IH

11" High Limit Stat for 3kW I.H

SKU:
WSTATH

£35.40

7" Control Stat for 3kW I.H

7" Control Stat for 3kW I.H

SKU:
WSTAT7

£31.50

11" Control Stat for 16" I.H

11" Control Stat for 3kW I.H

SKU:
WSTAT

£31.50

Cold Water Tank Jacket

Cold Water Tank Jacket

SKU:
WPUTJ

£43.20

Negative Head 2.0Bar Twin Pump

Negative Head 2.0Bar Twin Pump

SKU:
WPPNH

£776.40

4.5" Copper Float

4.5" Copper Float

SKU:
WPF4C

£35.40

Byelaw 30 Kit - CUBEflow

Byelaw 30 Kit - CUBEflow

SKU:
WPB30C

£34.50

Byelaw 30 Kit

Byelaw 30 Kit

SKU:
WPB30

£20.70

15mm B/V Long Tail

15mm Ballvalve Long Tail

SKU:
WP15BVJL

£51.00

15mm Ballvalve

15mm Ballvalve

SKU:
WP15BVJ

£43.20

90C Grey High Limit Thermostat

90C Grey High Limit Thermostat

SKU:
WNHLT

£51.00

30-90C Control Thermostat

30-90C Control Thermostat

SKU:
WNCT

£51.00

6kW Immersion Heater + Stat

6kW Immersion Heater + Stat

SKU:
WIH6

£183.60

11" 3kW Immersion & Stat

11" 3kW Immersion & Stat

SKU:
WIH

£39.00

15mm De-Strat Pump & Timer

SKU:
WCDP

£285.00

1/2" Drain Cock

1/2" Drain Cock

SKU:
WUF15DC

£19.80

Thermostatic Mixing Valve 28mm

Thermostatic Mixing Valve 28mm

SKU:
WTTMV28

£183.60

Remote Boost Button

Remote Boost Button

SKU:
WERBB

£82.20

ELECTRAflow Controller

ELECTRAflow Controller

SKU:
WEC

£870.00

15mm Bent Swivel Ballofix

15mm Bent Swivel Ballofix

SKU:
WTBF

£27.60

1" Flow Limiting Valve

1" Flow Limiting Valve

SKU:
WCPFL

£136.80

PLATEflow Charging Pump

PLATEflow Charging Pump

SKU:
WCPFP

£480.00

22mm Gate Type Pump Valve

22mm Gate Type Pump Valve

SKU:
WTGTPV

£27.60

28mm Gate Type Pump Valve

28mm Gate Type Pump Valve

SKU:
WTGTPV28

£27.60

Cradle

Cradles for POWERflow

SKU:
WCRP

£121.20

15mm Auto Air Vent (Bottle Type)

15mm Auto Air Vent (Bottle Type)

SKU:
WP15AAV

£35.40

15" 3kW Immersion (STEELflow)

15" 3kW Immersion (STEELflow)

SKU:
WUEIHS

£82.20

Plumbing Unit Frame

Plumbing Unit Frame

SKU:
WPUF

£207.00

6kW I.H. Control Stat

6kW I.H. Control Stat

SKU:
WIH6CS

£51.00

3/4" Safety Valve (3.5 Bar)

3/4" Safety Valve (3.5 Bar)

SKU:
WCSV35

£308.40

3/4" Safety Valve (4.5 Bar)

3/4" Safety Valve (4.5 Bar)

SKU:
WCSV45

£308.40

15" 3kW Heavy Duty Immersion

15" 3kW Heavy Duty Immersion

SKU:
WUEIHHD

£90.00

Stat (Overall)

Stat for WUEIH

SKU:
WUEIHST

£24.00

4.5" Plastic Float

4.5" Plastic Float

SKU:
WPF4

£27.60