Myson Thermar Tankless Parts

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Please note: ONLY the Myson parts that have prices shown are available.
Some of the parts shown in this parts breakdown are no longer available.

Gas Myson Tankless

No.	Part #	Description	Price & Quantity
1	10-12212	Union Nut, Heat Exchanger	--
2	10-12213	Comp. Flange, Brnz. Heat Exchanger	--
3	20-10047	'O' Ring - Heat Exchanger	$2.96
4	10-13843	Outlet Adaptor, ECO @ HX	--
5	10-12731	ADP Assembly In/Out	--
6	10-10062	Direct Vent Flu Seal	--
7	10-10916	Heat Exchanger Seal	--
8	10-14689	Heat Exchanger	--
9	10-10075	Direct Vent Case Seal	$14.87
10	10-19030	DV Cover - White	--
11	10-13056	CF Cover - White	--
12	10-19224 10-19226	CF Bottom Cover - Gray DV Bottom Cover - Gray	--
13	10-19055	ECO Assembly With Leads From Serial No. 15 000 000 0	--
14	10-13849	Thermocouple Connector	$39.42
15	10-13846	Interrupter Insert	$12.14
16	10-13848	Thermocouple	$42.65
17	12-13055	Fix/nut Thermocouple	--
18	22-13059	Pilot Mounting Assembly	--
20	10-12259	Electrode Assembly	--
21	10-12694	Pilot Filter	--
22	10-13706	FSD Assembly	--
23	10-12410	Magnet. Main Gas Valve	$98.41
24	10-11935	Piezo Igniter	$32.46
25	10-13008 10-12989	Regulator Assembly - NG Regulator Assembly - LP Gas	--
26	10-14639	Button - Stop	--
27	10-13705	Button - Start	--
28	10-14641	Button - Igniter	--
29	10-13486	Thermostat Bellows and Bulb	$197.46
30	20-14834	'O' Ring - Thermostat Sensing Bulb	$2.93
31	10-14536	Thermostat Assembly Complete (includes #29 & #32)	--
32	10-11904	Pin, Stat Assembly	$10.64
33	10-14637	Cold Inlet Throttle	--
34	10-14637	Cold Water Inlet Screen	--
35	20-12335	'O' Ring - Sensing Tube (PAIR)	$4.99
36	10-13495	Long Sensing Tube	$23.00
37	10-14923	Short Sensing Tube	$22.19
38	10-13561	Diaphragm Housing Assembly	--
39	10-12460	Diaphragm EPDM W/Plate	$49.32
40	20-15360	'O' Ring - Ball Disk	--
41	10-12373	Pin, Automatic Valve Assembly	--
42	20-11822	'O' Ring - Diaphragm Drive Pin	$4.68
43	10-12458 10-12803	Automatic Valve Assembly - NG Automatic Valve Assembly - LP Gas	--
44	10-12848	Manifold Gasket	--
45	10-12345	Stainless Burner	--
46	19-12780 19-12782	Standard Orifice/Inj, - NG Standard Orifice/Inj, - LP Gas	--

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Parts For Some Thermar - Myson - Homemaster Gas Tankless Water Heaters

Part #	Description	Price & Quantity
10-10075	Case seal for former direct vent	$14.87
10-13846	Ceramic interrupter insert	$12.14
10-12460	Diaphragm	$49.32
10-13850	Eco assembly	see replacement #50-10014
50-10014	High-limit thermostat 13 1/2" lead	$49.42
10-13495	Long sensing tube	$23.00
10-12410	Magnet, main gas valve, ffd assy	$98.41
20-11822	O-ring for diaphragm push pin	$4.68
20-10047	O-ring for heat exchanger	$2.96
20-12335	O-ring for sensing tube (PAIR)	$4.99
20-14834	O-ring for thermostat bellows	$2.93
10-11935	Piezo electric	$32.46
10-10196	Seat tape for heat exchanger	$17.86
10-14923	Short sensing tube	$22.19
10-11904	Stat assembly pin	$10.64
10-13848	Thermocouple	$42.65
10-13849	Thermocouple connector extension	$39.42
10-13486	Thermostat bellows	$197.46
If your Myson was manufactured in England then the above parts should fit.

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