- products: brazed | double wall brazed | shell and tube | shell & coil | pool heaters | indirect water heaters | air to water
- applications: radiant floor heating | snow melting systems | district heating
Air
to Water Heat Exchangers
Our air to water heat exchanger are a great fit for a variety of heating and cooling applications. These compact units are designed to maximize heat transfer by utilizing a series of 3/8" copper tubes with a high density of aluminum fins. These fins are spaced such that the fin density is 12 fins per inch. This design enables heating loads of 50,000-60,000 Btu per square foot (please see performance chart below). Despite such high fin density there is minimal flow resistance through these coils.
Applications
- Residential Heating
- Apartment Buildings and Condominiums
- Hybrid Systems
- Air Conditioning
- Dehumidification
Features of the Air to Water Heat Exchanger:
| Materials: | Tube Coil | 3/8" seamless Copper |
| Plate Fin | Aluminum | |
| Core Housing | Galvanized Steel | |
| Header | Copper | |
| Rating: | Tubeside | 175 psig/350F |
| Plate Fin Spacing | 12/inch | |
| All Connections | 1" ID Solder |
Features
of the Air to Water Heat Exchanger:
- Tube Coil is manufactured entirely of 3/8" seamless copper.
- Plate Fin is made from Aluminum.
- The core housing is made from galvanized steel.
- Header is made from Copper and has a 1" ID.
- The Tubeside is rated at 175 psig/350F.
- Plate Fin Spacing is 12 per inch.
- All connections are 1 inch ID Solder and can come with an optional flange and NPT.
- Units kept in stock for immediate delivery.
Dimensional Table
| Model |
Dimensions in |
|||||||||||
| A | B | C | D** | |||||||||
| HTL12 x 12 | CFM | Ent-Water | 500 | 600 | 700 | 800 | 900 | 1016 | 12 | 12 | 3.5 | 7 3/4 |
| pd in.wc | T(F) | 0.145 | 0.155 | 0.165 | 0.175 | 0.185 | 0.195 | |||||
|
Based
on
|
Load | 140 | 28080 | 29160 | 34171 | 36115 | 37325 | 38400 | ||||
|
6
gpm
|
in | 160 | 35978 | 37362 | 43782 | 46273 | 47822 | 49200 | ||||
|
pd
0.49psi
|
BTU/h
|
180
|
43875
|
45563
|
53392
|
56430
|
58320
|
60000
|
||||
| HTL16 x 16 |
CFM
|
Ent-Water
|
850
|
950
|
1050
|
1150
|
1250
|
1355
|
16 | 16 | 3.5 | 11 1/2 |
|
pd
in.wc
|
T(F)
|
0.172
|
0.189
|
0.206
|
0.223
|
0.240
|
0.257
|
|||||
|
Based
on
|
Load
|
140
|
44064
|
46580
|
48535
|
49928
|
50760
|
51200
|
||||
|
8
gpm
|
in
|
160
|
56457
|
59681
|
62185
|
63970
|
65036
|
65600
|
||||
|
pd
0.51psi
|
BTU/h
|
180
|
68850
|
72782
|
75836
|
78013
|
79312
|
80000
|
||||
| HTL16 x 18 |
CFM
|
Ent-Water
|
1100
|
1200
|
1300
|
1400
|
1500
|
1693
|
16 | 18 | 3.5 | 11 1/2 |
|
pd
in.wc
|
T(F)
|
0.189
|
0.206
|
0.223
|
0.240
|
0.257
|
0.274
|
|||||
|
Based
on
|
Load
|
140
|
57024
|
58838
|
60091
|
60782
|
60912
|
64000
|
||||
|
10
gpm
|
in
|
160
|
73062
|
75386
|
76992
|
77877
|
78044
|
82000
|
||||
|
pd
0.81psi
|
BTU/h
|
180
|
89100
|
91935
|
93892
|
94972
|
95175
|
100000
|
||||
| HTL18 x 18 |
CFM
|
Ent-Water
|
1500
|
1600
|
1700
|
1800
|
1900
|
2032
|
18 | 18 | 3.5 | 13 |
|
pd
in.wc
|
T(F)
|
0.24
|
0.257
|
0.274
|
0.291
|
0.308
|
0.325
|
|||||
|
Based
on
|
Load
|
140
|
71280
|
72921
|
74174
|
75038
|
75513
|
76800
|
||||
|
12
gpm
|
in
|
160
|
91327
|
93430
|
95035
|
96142
|
78044
|
98400
|
||||
|
pd
0.91psi
|
BTU/h
|
180
|
111375
|
113940
|
115897
|
117247
|
117990
|
120000
|
||||
| HTL18 x 20 |
CFM
|
Ent-Water
|
1850
|
1950
|
2050
|
2150
|
2250
|
2370
|
18 | 20 | 3.5 | 13 |
|
pd
in.wc
|
T(F)
|
0.274
|
0.291
|
0.308
|
0.325
|
0.342
|
0.359
|
|||||
|
Based
on
|
Load
|
140
|
83916
|
85503
|
86788
|
87771
|
88452
|
89600
|
||||
|
14
gpm
|
in
|
160
|
107517
|
109551
|
111198
|
112457
|
113329
|
114800
|
||||
|
pd
1.32psi
|
BTU/h
|
180
|
131118
|
133599
|
135607
|
137143
|
138206
|
140000
|
||||
| HTL19 x 20 |
CFM
|
Ent-Water
|
2050
|
2150
|
2250
|
2350
|
2450
|
2540
|
20 | 19 | 3.5 | 14 1/2 |
|
pd
in.wc
|
T(F)
|
0.303
|
0.320
|
0.337
|
0.354
|
0.371
|
0.388
|
|||||
|
Based
on
|
Load
|
140
|
88560
|
90558
|
92340
|
93906
|
95256
|
96000
|
||||
|
15
gpm
|
in
|
160
|
113467
|
116027
|
118310
|
120317
|
122046
|
123000
|
||||
|
pd
1.49psi
|
BTU/h
|
180
|
138375
|
141496
|
144281
|
146728
|
148837
|
150000
|
||||
| HTL20 x 20 |
CFM
|
Ent-Water
|
1950
|
2100
|
2250
|
2400
|
2550
|
2708
|
20 | 20 | 3.5 | 14 1/2 |
|
pd
in.wc
|
T(F)
|
0.272
|
0.298
|
0.323
|
0.349
|
0.374
|
0.400
|
|||||
|
Based
on
|
Load
|
140
|
92664
|
95709
|
98172
|
100051
|
101347
|
102400
|
||||
|
16
gpm
|
in
|
160
|
118725
|
122627
|
125782
|
128190
|
129851
|
131200
|
||||
|
pd
1.38psi
|
BTU/h
|
180
|
144787
|
149546
|
153393
|
156330
|
158355
|
160000
|
||||
| HTL22 x 22 |
CFM
|
Ent-Water
|
2400
|
2600
|
2800
|
3000
|
3200
|
3386
|
22 | 22 | 3.5 | 17 1/2 |
|
pd
in.wc
|
T(F)
|
0.287
|
0.321
|
0.355
|
0.389
|
0.423
|
0.457
|
|||||
|
Based
on
|
Load
|
140
|
114048
|
118497
|
122169
|
125064
|
127180
|
128000
|
||||
|
21
gpm
|
in
|
160
|
146124
|
151825
|
156529
|
160238
|
162950
|
164000
|
||||
|
pd
2.08psi
|
BTU/h
|
180
|
178200
|
185152
|
190890
|
195412
|
198720
|
200000
|
||||
| HTL20 x 25 |
CFM
|
Ent-Water
|
2200
|
2400
|
2600
|
2800
|
3000
|
3216
|
20 | 25 | 3.5 | 14 1/2 |
|
pd
in.wc
|
T(F)
|
0.252
|
0.286
|
0.320
|
0.354
|
0.388
|
0.422
|
|||||
|
Based
on
|
Load
|
140
|
104544
|
109382
|
113443
|
116726
|
119232
|
121600
|
||||
|
20
gpm
|
in
|
160
|
133947
|
140146
|
145349
|
149555
|
152766
|
155800
|
||||
|
pd
2.56psi
|
BTU/h
|
180
|
163350
|
170910
|
177255
|
182385
|
186300
|
190000
|
||||
| HTL22 x 25 |
CFM
|
Ent-Water
|
2700
|
2900
|
3100
|
3300
|
3500
|
3725
|
22 | 25 | 3.5 | 17 1/2 |
|
pd
in.wc
|
T(F)
|
0.320
|
0.354
|
0.388
|
0.422
|
0.456
|
0.490
|
|||||
|
Based
on
|
Load
|
140
|
128304
|
132170
|
135259
|
137570
|
139104
|
140800
|
||||
|
23
gpm
|
in
|
160
|
164389
|
169343
|
173300
|
176262
|
178227
|
180400
|
||||
|
pd
2.77psi
|
BTU/h |
180
|
200475
|
206516
|
211342
|
214953
|
217350
|
220000 | ||||
Capacity based on
boiler temperature 180 F.
** Can be customized.
Please note that all air to water heat exchangers are available for immediate delivery.
Do you still have questions? We invite you to call or email us today for more information. We'll be happy to provide you with a heat exchanger that matches your specific needs.