Low Pressure Steam Boilers

Rite has been building Boilers in Las Angeles, California since 1952. They still have boilers in operation that were built back in the 50s. If you want an American made quality Boiler that is built to last for decades, then a Rite boiler is for you.

If you would like a quote for a Rite Low Pressure Steam Boiler, I will need to know your elevation above sea level, what type of vessels that you will be firing, the capacity of those vessels in gallons, and the expected heat up time. Click here to email paul@distillery-equipment.com

The Crown Low Pressure Steam Boilers that we sell are a more affordable alternative to the Rite Low Pressure Steam Boilers. However, the largest vessel that a Crown Low Pressure Steam Boiler can heat is 200 gallons. Click the link below to see our Crown Low Pressure Steam Boilers.

Crown Low Pressure Steam Boilers

Models and Ratings for Rite Atmospheric Low Pressure Steam Boilers

Stack / Draft Requirements

UL listed for use with Type B Vent when power burner is for natural or L.P. gas fired only.
Type 304 stainless steel lined stack is required when equipped with #2 oil or combination gas & #2 oil burner.
Minimum stack height for natural or L.P. gas fired burners is 10 feet.
Minimum height for #2 oil or combination gas & #2 oil fired boilers is 15 ft.
The stack should be supported independently of the boiler and an adjustable length section of stack should be installed after the barometric damper to allow for future separation. All Rite Boilers have internal stack supports to handle the weight of the stack during installation.
Power Burner fired boilers are supplied with a barometric damper (shipped loose) and a draft gauge (installed) to help set and maintain a draft between -.05” to -.09” W.C. for all fuels and firing rates.

Air Requirements

Adequate Combustion/Ventilation Air is vital for safe, efficient operation. Refer to the latest edition of the Uniform Mechanical Code or consult your local building and safety department for specific requirements. Warning: Do not install in a room that will develop negative pressure without utilizing a properly sized induced draft fan.

Electrical Requirements

A single point 1 or 3 phase supply is required to the burner panel. See separate burner price lists for standard electrical power requirements.
Separate electrical supply may be required to operate boiler feed pump.

Natural Gas Supply Requirements (Static and at Flow)

Models 15 S * - 76 S *: 6” w.c. min. to 14” w.c. max.
Models 85 S * - 400 S *: 7” w.c. min. to 28” w.c. max.
Models 425 S * - 750 S *: 15” w.c. min. to 28” w.c. max.
Models 840 S * - 1250 S *: 20” w.c. min. to 28” w.c. max.
For other gas pressures, consult factory or your Rite Representative.

Propane Supply Requirements: 11" w.c. min. to 14" w.c. max.

Feedwater Systems & Blowdown Tanks

Rite manufactures a complete line of Condensate Return Feedwater Tanks and Blowdown Tanks for our Steam Boilers shown below.

Information in the table below is subject to change during website development. Please contact Rite with issues or questions.

BOILER MODEL	Input MBH	MBH (Output)	E.D.R.	Boiler Horsepower	Heating Surface Sq. Ft.	Flooded Water Content Gallons	Normal Water Level Content Gallons	Pounds of Steam per Hour @ 212º	Nominal Shipping Weight (lbs)
15 S	150	120	500	4	14	11	7	123	670
20 S	200	160	666	5	19	14	9	164	710
25 S	250	200	843	6	22	18	11	206	750
30 S	300	240	1000	7	28	22	14	247	950
36 S	360	288	1200	9	33	26	17	296	1100
42 S	420	336	1400	10	39	30	19	346	1400
48 S	480	384	1600	11	49	35	25	395	1460
55 S	550	440	1833	13	56	40	27	453	1520
63 S	630	506	2108	15	63	45	29	519	1580
76 S	760	608	2533	18	75	54	32	626	1650
85 S	850	680	2833	20	88	61	49	700	2000
90 S	900	720	3000	21	88	64	49	742	2000
105 S	1050	840	3500	25	101	76	52	865	2200
120 S	1200	960	4000	28	115	85	55	989	2400
135 S	1350	1080	4500	32	131	97	58	1113	2600
150 S	1500	1200	5000	35	145	105	60	1236	2800
165 S	1650	1320	5500	39	159	118	64	1360	3000
180 S	1800	1440	6000	43	174	130	68	1484	3200
200 S	2000	1600	6667	47	192	140	74	1649	3400
A150 S	1500	1200	5000	35	160	120	74	1236	2800
A165 S	1650	1320	5500	39	168	128	78	1360	3000
A180 S	1800	1440	6000	43	190	140	81	1484	3200
A200 S	2000	1600	6667	47	205	150	84	1649	3400
225 S	2250	1800	7500	53	230	162	87	1855	3600
250 S	2500	2000	8333	59	252	180	92	2061	3850
275 S	2750	2200	9167	65	273	196	96	2267	4100
300 S	3000	2400	10000	71	295	215	100	2473	4350
325 S	3250	2600	10833	77	318	234	105	2679	4600
350 S	3500	2800	11667	83	340	251	110	2885	4580
375 S	3750	3000	12500	89	362	268	115	3091	5100
400 S	4000	3200	13333	95	383	287	125	3297	5400
425 S	4250	3400	14167	101	405	304	129	3504	5700
450 S	4500	3600	15000	107	428	322	132	3710	0
475 S	4750	3800	15833	113	450	337	135	3916	6300
500 S	5000	4000	16667	119	473	352	140	4122	6600
550 S	5500	4400	18333	131	526	370	147	4534	7200
600 S	6000	4800	20000	143	574	387	158	4946	7800
A650 S	6500	5200	21667	155	622	405	166	5359	8300
A700 S	7000	5600	23333	167	670	430	174	5731	8850
A750 S	7500	6000	25000	180	722	455	179	6183	9300
A400 S	4000	3200	13333	95	390	300	165	3297	6500
A450 S	4500	3600	15000	107	440	325	174	3710	7100
A500 S	5000	4000	16667	119	486	345	183	4122	7700
A550 S	5500	4400	18333	131	535	380	199	4534	8400
A600 S	6000	4800	20000	143	584	405	207	4946	9000
650 S	6500	5200	21667	155	632	425	215	5359	9600
700 S	7000	5600	23333	167	680	450	223	5771	10200
750 S	7500	6000	25000	180	730	470	232	6183	10800
840 S	8400	6700	27917	200	800	490	399	6935	12000
940 S	9400	7500	31250	225	900	515	419	7250	12700
1050 S	10500	8400	35000	250	1000	540	439	8675	13300
1150 S	11500	9200	38333	275	1100	565	459	9481	14200
1250 S	12499	9999	41662	300	1200	590	480	10300	15000

Add G for natural gas or propane O for #2 oil or GO for combination gas &2 oil.

NOTE: Equivalent Direct Radiation (EDR), measured in terms of square feet, is a standardized comparison method estimating the output ability of boilers and radiators.

For Steam Systems: 1 square foot EDR will emit 240 BTUs/hr.
*Rating based on approximately 212° F (100° C) temperature and 1-2 PSI of pressure.

For Hot Water Systems: 1 square foot EDR will emit 160 BTUs/hr.

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Models and Dimensions

DIMENSIONS ARE IN INCHES - SUBJECT TO PRODUCTION TOLERANCES AND CHANGE WITHOUT NOTICE. CERTIFIED DIMENSIONS AVAILABLE UPON REQUEST.
BOILERS APPROVED FOR INSTALLATION ON NON - COMBUSTIBLE FLOORS ONLY.

Draft Diverters are supplied standard on Models 48S -120S only. Barometric Dampers will be shipped one size smaller than D dimension for stacks up to 25 feet of vertical height (as shown below in column E), full size (same as D dimension) for stacks 25 to 50 feet tall and one size larger for stacks over 50 feet tall. Barometric Damper Tee by others.

May vary -sizes shown are for UL gas trains at standard supply pressures. Gas connections are male NPT pipe thread.

Flanges are ANSI 150 lb SA-105 flat face. Models A150S - 375S: 6” FLG STD. for U.S. locations, 5” FLG for Canadian locations.

Standard right hand construction shown illustrated above. Left hand construction available at no extra charge.

Information in the table below is subject to change during website development. Please contact Rite with issues or questions.

BOILER MODEL	A	B	C	COA	D	E	F	H	J	K	L	N	S	T
BOILER MODEL	Length Jacket	Width Jacket	Height Flush	Height Overall	Stack Dia.	Draft Control	Twin Stack	Tube Maint.	Gas Conn.	Steam Supply	Feed Water	Side Space	Blow Down	Head Swing
15 S	26	21	58	67	6	28			0.75	2	1.5	8	1.5
20 S	26	21	58	67	6	28			0.75	2	1.5	8	1.5
25 S	35	21	58	67	7	29			0.75	2	1.5	8	1.5
30 S	41	21	58	67	8	30			1	2.5	1.5	9	1.5
36 S	51	21	58	67	9	31			1	2.5	1.75	9	1.5
42 S	57	21	58	67	9	31			1.25	3	1.5	9	1.5
48 S	47	26	57	66	9	9 D.D. (33)	-	40	0.75	3 FL	1.25	10	1.00	20
55 S	52	26	57	66	10	10 D.D. (34)	-	45	1.00	3 FL	1.25	10	1.00	20
63 S	56	26	57	66	10	10 D.D. (34)	-	49	1.00	3 FL	1.25	10	1.00	20
76 S	64	26	57	66	12	12 D.D. (36)	-	57	1.00	3 FL	1.25	10	1.00	20
85 S	59	32	63	72	12	12 D.D. (36)	-	47	1.00	4 FL	1.50	12	1.25	26
90 S	59	32	63	72	12	12 D.D. (36)	-	47	1.00	4 FL	1.50	12	1.25	26
105 S	65	32	63	72	14	14 D.D. (38)	-	53	1.00	4 FL	1.50	12	1.25	26
120 S	71	32	63	72	14	14 D.D. (38)	-	59	1.25	4 FL	1.50	12	1.25	26
135 S	77	32	63	72	14	12 BARO	-	65	1.25	4 FL	1.50	12	1.25	26
150 S	83	32	63	72	14	12 BARO	-	71	1.25	4 FL	1.50	12	1.25	26
165 S	89	32	63	72	14	12 BARO	-	77	1.25	4 FL	1.50	12	1.25	26
180 S	96	32	63	72	16	14 BARO	-	84	1.25	4 FL	1.50	12	1.25	26
200 S	103	32	63	72	16	14 BARO	-	91	1.50	4 FL	1.50	12	1.25	26
A150 S	69	42	69	78	14	12 BARO	-	53	1.25	6 FL	2.00	14	1.50	34
A165 S	73	42	69	78	14	12 BARO	-	57	1.25	6 FL	2.00	14	1.50	34
A180 S	79	42	69	78	16	14 BARO	-	63	1.50	6 FL	2.00	14	1.50	34
A200 S	83	42	69	78	16	14 BARO	-	67	1.50	6 FL	2.00	14	1.50	34
225 S	87	42	69	78	18	16 BARO	-	71	1.50	6 FL	2.00	16	1.50	34
250 S	93	42	69	78	18	16 BARO	-	77	2.00	6 FL	2.00	16	1.50	34
275 S	99	42	69	78	18	16 BARO	-	83	2.00	6 FL	2.00	16	1.50	34
300 S	105	42	69	78	20	18 BARO	-	89	2.00	6 FL	2.00	16	1.50	34
325 S	111	42	69	78	20	18 BARO	-	95	2.00	6 FL	2.00	16	1.50	34
350 S	117	42	69	78	20	18 BARO	-	101	2.00	6 FL	2.00	16	1.50	34
375 S	123	42	69	78	20	18 BARO	-	107	2.00	6 FL	2.00	16	1.50	34
400 S	98	51	79	88	22	20 BARO	-	80	2.00	8 FL	2.00	16	2.00	45
425 S	103	51	79	88	22	20 BARO	-	85	2.00	8 FL	2.00	16	2.00	45
450 S	107	51	79	88	22	20 BARO	-	89	2.00	8 FL	2.00	16	2.00	45
475 S	111	51	79	88	24	20 BARO	-	93	2.50	8 FL	2.00	16	2.00	45
500 S	116	51	79	88	24	20 BARO	-	98	2.50	8 FL	2.00	16	2.00	45
550 S	125	51	79	88	26	24 BARO	-	107	2.50	8 FL	2.00	16	2.00	45
600 S	139	51	79	88	26	24 BARO	-	117	2.50	8 FL	2.00	16	2.00	45
A650 S	149	51	79	88	28	24 BARO	-	127	2.50	8 FL	2.00	16	2.00	45
A700 S	158	51	79	88	28	24 BARO	-	136	2.50	8 FL	2.00	16	2.00	45
A750 S	167	51	79	88	30	28 BARO	-	147	2.50	8 FL	2.00	16	2.00	45
A400 S	89	63	79	88	22	20 BARO	-	72	2.00	8 FL	2.00	16	2.00	56
A450 S	97	63	79	88	22	20 BARO	-	80	2.00	8 FL	2.00	16	2.00	56
A500 S	105	63	79	88	24	20 BARO	-	88	2.50	8 FL	2.00	16	2.00	56
A550 S	119	63	79	88	26	24 BARO	-	102	2.50	8 FL	2.00	16	2.00	56
A600 S	126	63	79	88	26	24 BARO	-	109	2.50	8 FL	2.00	16	2.00	56
650 S	134	63	79	88	28	24 BARO	-	117	2.50	8 FL	2.00	16	2.00	56
700 S	141	63	79	88	28	24 BARO	-	124	2.50	8 FL	2.00	16	2.00	56
750 S	149	63	79	88	30	28 BARO	-	132	2.50	8 FL	2.00	16	2.00	56
840 S	138	77	79	88	(2) 2	(2) 20 BARO	23