What is the most efficient Domestic Hot Water Heaters
Domestic Hot Water Heaters: Gas-fired domestic hot water heater (commercial), standard efficiency. Set in place only, Make additional allowances for pipe and combustion venting connections.Subject: Plumbing - Sub Subject: Hot Water Heaters
Date: 6/22/2019 Status: ACTIVE
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❝What is the most efficient Domestic Hot Water Heaters❞ answers. technician asked first. Total 2 replies.
Gas-fired domestic hot water heater (commercial), standard efficiency.Set in place only, Make additional allowances for pipe and combustion venting connections.
50 gal./ 95 gph P1@2.00 Ea 2,240.00 72.50 2,312.50
67 gal./106 gph P1@2.00 Ea 2,650.00 72.50 2,722.50
76 gal./175 gph P1@2.00 Ea 3,550.00 72.50 3,622.50
91 gal./291 gph P1@2.00 Ea 4,280.00 72.50 4,352.50
Gas-fired domestic hot water heater (commercial), energy miser.Set in place only, Make additional allowances for pipe and combustion venting connections.
50 gal./ 95 gph P1@2.00 Ea 5,270.00 72.50 5,342.50
67 gal./106 gph P1@2.00 Ea 5,510.00 72.50 5,582.50
76 gal./175 gph P1@2.00 Ea 6,830.00 72.50 6,902.50
91 gal./291 gph P1@2.00 Ea 8,120.00 72.50 8,192.50
Tankless natural gas water heatersAmbient pressure. DOE and UL rated. For residential, multi-dwelling and light commercial potable water applications.
Add the cost of piping, tempering valve, circulating pump, controls, and electrical connection, post-installation inspection by both the fire marshal and the mechanical inspector to validate federal, state and local energy tax credits or energy tax credit offsets. For larger arrays (laundries, institutional facilities, food processing plants), develop an estimate based on the required capacity and multiply these costs by the number of heaters required. Rated in Btus and gallons per minute capacity. (1 Mbh 1,000 Btus)
.75-5.8 Gpm P1@16.0 Ea 1,830.00 580.00 2,410.00
.5-7 Gpm P1@20.0 Ea 2,160.00 725.00 2,885.00
.75-9.6 Gpm P1@20.0 Ea 2,160.00 725.00 2,885.00
Tankless electric point-of-use water heatersAmbient pressure, DOE and UL rated. For residential, multi-dwelling and light commercial potable water applications. Cost does not include piping, tempering valve, circulating pump, controls, storage tank, electrical connection. Add the cost of post-installation inspection by the mechanical inspector to validate federal, state and local energy tax credits or energy tax credit offsets. In rated gallons per minute capacity.
5.5 Kw/40 Amp,
.75-2 Gpm P1@4.00 Ea 461.00 145.00 606.00
9.5 Kw/50 Amp
.75-2.5 Gpm P1@4.25 Ea 547.00 154.00 701.00
19 Kw/100 Amp
1-3.5 Gpm P1@4.50 Ea 909.00 163.00 1,072.00
28 Kw/120 Amp
1.5-5 Gpm P1@4.75 Ea 1,660.00 172.00 1,832.00
Domestic hot water heater connection assemblyIncludes supply, return, recirculation and relief piping and fittings (copper), relief and isolation valves.
Make additional allowances for gas and venting connections where applicable.
¾❞ residential P1@1.75 Ea 313.00 63.40 376.40
¾❞ commercial P1@2.25 Ea 420.00 81.50 501.50
1❞ commercial P1@2.75 Ea 736.00 99.70 835.70
1¼❞ commercial P1@3.50 Ea 901.00 127.00 1,028.00
1½❞ commercial P1@3.75 Ea 938.00 136.00 1,074.00
2❞ commercial P1@4.50 Ea 1,000.00 163.00 1,163.00
2½❞ commercial P1@5.75 Ea 2,080.00 208.00 2,288.00
3❞ commercial P1@6.50 Ea 3,190.00 236.00 3,426.00
Domestic water heater combustion vent connectionMake additional allowances for piping distances greater than 25'.
2❞ B-vent P1@.090 LF 6.22 3.26 9.48
3❞ B-vent P1@.100 LF 7.69 3.62 11.31
4❞ B-vent P1@.110 LF 10.20 3.99 14.19
6❞ B-vent P1@.130 LF 11.60 4.71 16.31
vent kit P1@2.50 Ea 437.00 90.60 527.60
Power vent kit P1@2.00 Ea 1,120.00 72.50 1,192.50
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