Myson Thermar Tankless Parts from FAMOUS PLUMBING SUPPLY

Myson Thermar Tankless Parts

Myson Thermar Tankless Parts

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PlumbingSupply.com is your source for hard-to-find Myson tankless water heater repair parts.
Shopping for a replacement tankless water heater? Click here for our tankless water heater index page.

need parts for a Aquastar gas tankless water heater?

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 -

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).

We hope that we have helped you on this page with tankless parts and that you will always be pleased with us.

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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	--

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