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THERMALEC HAVE BEEN MANUFACTURING POOL & SPA 
HEATERS FOR OVER 50 YEARS FROM OUR BASE IN THE 
UNITED KINGDOM. WE CAN STILL SUPPLY SPARE PARTS FOR THE MAJORITY OF OUR HEATERS AND WHERE WE CAN NOT SUPPLY AN ORIGINAL PART WE CAN USUALLY OFFER A SUITABLE REPLACEMENT. 
PLEASE CONTACT US ON +44 (0)1752 313343 FOR FURTHER DETAILS OR EMAIL US VIA OUR CONTACT PAGE. 
 
PLEASE BE SURE TO QUOTE YOUR HEATER SERIAL NUMBER WHEN ENQUIRING FOR SPARE PARTS. 
 

These are our most common spares. Please ring for anything not on the list below. 

E17XB Element
2.5kW Heating Element 
Part Number. E17XB 
Material: Incoloy 825 
Capacity @ 230V: 2.5kW 
Heater used: PHR 
Low density Incoloy heating 
element used in 2.5, 7.5 15kW  
heaters. 
Identification: printed on element 
Bead end: Brown. Element Colour 
Pink 
E17T Element
2.5 kW Heating Element 
Part Number: E17T 
Material: Titanium 
Capacity @ 230 V: 2.5 kW 
Heater Used: THR 
Low density Titanium heating element, used in 2.5, 7.5, 15kW heaters. 
Identifcation: printed on element. Bead end: Brown. Element Colour: Blue 
E18XB Element
3 kW Heating Element 
Part Number: E18XB 
Material: Incoloy 825 
Capacity @ 230 V: 3 kW 
Heater Used: PHR 
Low density Incoloy heating element, used in 3, 6, 9, 21 & 30 kW heaters. 
Identification: Element type printed on element. Plug end Brown. Element Colour: Pink 
E18T Element
3 kW Heating Element 
Part Number: E18T 
Material: Titanium 
Capacity @ 230 V: 3 kW 
Heater Used: THR 
Low density Titanium heating element, used in 3, 6, 9, 21 & 30 kW heaters. 
Identification: Element type printed on element. Plug end Brown. Element Colour: Pink 
Discontinued 
4 kW Heating Element 
Part Number: E10XB 
Material: Incoloy 825 
Capacity @ 230/400V: 4 kW 
Heater Used: PHR 
Low density Incoloy heating element, used in 4, 12, 24, 36, 48, 60, 72 ,84, 96, 108, 120 kW heaters. 
Identification: Element type printed on element. Plug end Brown. Element Colour: Pink 
E10T
4 kW Heating Element 
Part Number: E10T 
Material: Titanium 
Capacity @ 230/400 V: 4 kW 
Heater Used: THR 
Low density Titanium heating element, used in 4, 12, 24, 36, 48, 60, 72 ,84, 96, 108, 120 kW heaters. 
Identification: Element type printed on element. Plug end Brown. Element Colour: Pink 
E20T 8kW Element
8 kW Heating Element 
Part Number: E20T 
Material: Titanium 
Capacity @ 230/400V: 8 kW 
Heater Used: ZHR 
Low density Titanium heating element, used in 8, 16, 24, 48, 72, 120, 144, 168 kW heaters. 
Identification: Element type printed on element. Plug end Brown. Element Colour: Pink 
£30T 4kW Element
4 kW Heating Element 
Part Number: E30T 
Material: Titanium 
Capacity @ 220/380 V: 4 kW 
Heater Used: THR 
Low density Titanium heating element, used in 4, 12, 24, 36, 48, 60, 72 ,84, 96, 108, 120 kW heaters. 
Identification: Element type printed on element. Plug end Brown. Element Colour: Pink 
C20 Control Thermostat
C20 Control Stat  
Temperature Control Thermostat (Analogue) 
Part Number: C20-AS 
Heater Used: PHR, THR, ZHR, Deluxe range and special projects. 
C13 Safety Thermostat
C13 Safety Stat 
Safety Control Thermostat 
Part Number: C13-AS 
Heater Used: PHR, THR, ZHR, Deluxe Range and special projects 
C7 Thermometer
C7 Thermometer 
Part Number: C7 
Heater Used: PHR, THR, ZHR, Deluxe Range and Special projects on 30kW, 36kW, 48kW, 60kW, 72kW, 84kW, 96kW, 108kW, 120kW, 144kW and 168kW heaters 
 
B84 On/Off Rocker Switch
B84 On/off Rocker Switch 
Part Number; B84 
Heater Used: 12PHR/THR 
B41 Main Supply Lamp
B41 Main Supply Lamp - Red 
Part Number: B41 
Heater Used: 24PHR/THR, 36PHR/THR, 72PHR/THR, 120PHR/THR 
B42 Pump Supply Lamp
B42 Pump Supply Lamp - Amber 
Part Number: B42 
Heater Used: 24PHR/THR, 36PHR/THR, 72PHR/THR, 120PHR/THR 
Miniature Coloured Status Lamps
Coloured Status Lamps - Miniature 
Heater Used: 12PHR/THR, some early 24PHR 
Rectangular Status Lamps
Coloured Status Lamps - Rectangular 
Heater Used: 24PHR/THR, 36PHR/THR, 48PHR/THR, 72PHR/THR, 120PHR/THR 
F70 Flang Clamp
F70 Flange Clamp 1 1/2" 
Heater Used: 12PHR/THR 
F71 Stub Flang
F71 Stub Flange 1 1/2" 
Heater Used: 12PHR/THR 
F72 Flange Clamp
F72 Flange Clamp 2" 
Heater Used: THR, 24PHR, 36PHR, 72PHR 
F73 Stub Flange
F73 Stub Flange 2" 
Heater Used: THR, 24PHR, 36PHR, 72PHR 
F120 Flange Clamp
F120 Flange Clamp 3" 
Heater Used: 120PHR/THR, ZHR 
F121 Stub Flange
F121 Stub Flange 3" 
Heater Used: 120PHR/THR, ZHR 
F80 Safety Valve
F80 Safety Valve 3/4" 
Heater Used: PHR, THR, ZHR, Deluxe, Specials 
F100 Drain Valve
F100 Drain Valve 1/2" 
Heater Used: PHR, THR, ZHR, Deluxe, Specials 
G70 Flow Gasket
G70 Flow Gasket 1 1/2" Flange 
Heater Used: 12PHR/THR 
G88 Flow Gasket
G88 Flow Gasket 2" Flange 
Heater Used: 24PHR/THR, 36PHR/THR, 72PHR/THR 
G122 Flow Gasket
G122 Flow Gasket 3" Flange 
Heater Used: 120PHR/THR, ZHR 
APH1446 Adaptor Body
APH1446 Adaptor Body 
Heater Used: PHR, THR, ZHR, Deluxe, Specials 
APH1630 Element Nut
APH1630 Element Nut 
Heater Used: PHR, THR, ZHR, Deluxe, Specials 
EC27C/BR Compression Olive
EC27C/BR Compression Olive 
Heater Used: PHR, THR, ZHR, Deluxe, Specials 
G12PHR Main Gasket
G12PHR Main Gasket 
Heater Used: 12PHR/THR 
G21PHR Main Gasket
G24PHR Main Gasket 
Heater Used: 24PHR/THR 
G36PHR Main Gasket
G38PHR Main Gasket 
Heater Used: 36PHR/THR 
G72PHR Main Gasket
G72PHR Main Gasket 
Heater Used: 72PHR/THR 
G120PHR Main Gasket
G120PHR Main Gasket 
Heater Used: 120 PHR/THR. 
E23 Thermostat Pocket
E23 Thermostat Pocket 
Heater Used: PHR, THR, ZHR, Deluxe, Specials 
AB503 50A Circuit Breaker
AB503 50A Circuit Breaker 
Heaters Used: 24PHR/THR 
AB603 60A Circuit Breaker
AB603 60A Circuit Breaker 
Heater Used: 36PHR/THR, 72PHR/THR, 
AB1003 100A Circuit Breaker
AB1003 100A Circuit Breaker 
Heater Used: 48PHR/THR, 60PHR/THR, 120PHR/THR, ZHR 
AC4ENT/230 40A Contactor
AC4ENT/230 40A Contactor 
Heater Used: PHR, Older THR & ZHR 
AC3TEC-21 32A Contactor
AC3TEC-21 32A Contactor 
Heater Used: THR, PHR  
AC3TEC-40 40A Contactor
AC3TEC-40 40A Contactor 
Heater Used: ZHR 
A6B Time Delay Relay
A6B Time Delay Relay 
Heater Used: 48THR & Above 
A6Z Electronic Time Delay Relay
A6Z Electronic Time Delay Relay 
Heater Used: ZHR 
A7 Pump Interlock Relay - Plug In
A7 Pump Interlock Relay - Plug In 
Heater Used: PHR, THR, ZHR, Deluxe, Specials 
A8 Pump Interlock Relay Base
A8 Pump Interlock Relay Base 
Heater Used: PHR, THR, ZHR, Deluxe, Specials