Myson Replacement Parts Breakdown from plumbing world

Myson Replacement Parts Breakdown

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please note that ONLY the Myson parts that have prices shown are what we sell/stock/offer.
We do NOT sell ALL parts shown in this parts breakdown ( -- means not 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 $3.49
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 $22.04
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 $44.04
15 10-13846 Interrupter Insert $15.23
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 $166.19
24 10-11935 Piezo Igniter $40.05
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 $227.46
30 20-14834 'O' Ring - Thermostat Sensing Bulb $3.51
31 10-14536 Thermostat Assembly Complete (includes #29 & #32) --
32 10-11904 Pin, Stat Assembly $16.66
33 10-14637 Cold Inlet Throttle --
34 10-14637 Cold Water Inlet Screen --
35 20-12335 'O' Ring - Sensing Tube $3.46
36 10-13495 Long Sensing Tube $23.11
37 10-14923 Short Sensing Tube $43.07
38 10-13561 Diaphragm Housing Assembly --
39 10-12460 Diaphragm EPDM W/Plate $52.05
40 20-15360 'O' Ring - Ball Disk --
41 10-12373 Pin, Automatic Valve Assembly --
42 20-11822 'O' Ring - Diaphragm Drive Pin $5.82
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 --

- Or -

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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	$22.04
10-13846	Ceramic interrupter insert	$15.23
10-12460	Diaphragm	$52.05
10-13850	Eco assembly	see replacement #50-10014
50-10014	High-limit thermostat 13 1/2" lead	$56.23
10-13495	Long sensing tube	$23.11
10-12410	Magnet, main gas valve, ffd assy	$166.19
20-11822	O-ring for diaphram push pin	$5.82
20-10047	O-ring for heat exchanger	$3.49
20-12335	O-ring for sensing tube	$3.46
20-14834	O-ring for thermostat bellows	$3.51
10-11935	Piezo electric	$40.05
10-10196	Seat tape for heat exchanger	$24.80
10-14923	Short sensing tube	$43.07
10-11904	Stat assembly pin	$16.66
10-13848	Thermocouple	$42.65
10-13849	Thermocouple connector extension	$44.04
10-13486	Thermostat bellows	$227.46
If your Myson was manufactured in England then the above parts should fit.

- Or -

"Do you also sell old Thermar or Homemaster brand gas tankless parts?"
If your HomeMaster or Thermar gas tankless water heater was manufactured in England (Thermar #TL100 and #TL200), then our above Myson parts will probably fit (but we can't guarantee that they will in fact fit).

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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	$3.49
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	$22.04
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	$44.04
15	10-13846	Interrupter Insert	$15.23
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	$166.19
24	10-11935	Piezo Igniter	$40.05
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	$227.46
30	20-14834	'O' Ring - Thermostat Sensing Bulb	$3.51
31	10-14536	Thermostat Assembly Complete (includes #29 & #32)	--
32	10-11904	Pin, Stat Assembly	$16.66
33	10-14637	Cold Inlet Throttle	--
34	10-14637	Cold Water Inlet Screen	--
35	20-12335	'O' Ring - Sensing Tube	$3.46
36	10-13495	Long Sensing Tube	$23.11
37	10-14923	Short Sensing Tube	$43.07
38	10-13561	Diaphragm Housing Assembly	--
39	10-12460	Diaphragm EPDM W/Plate	$52.05
40	20-15360	'O' Ring - Ball Disk	--
41	10-12373	Pin, Automatic Valve Assembly	--
42	20-11822	'O' Ring - Diaphragm Drive Pin	$5.82
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	--