Type of Water Heaters Compared

Estimated Annual Operating Cost

Estimated Tankless Water Heater Installation Cost

Estimated Cost of Space

Total First Year Cost

SEISCO

RA-28

$227

$165

-0-

$392

50 Gallon

(electric)

$380

$140

$406

$926

50 Gallon

(natural gas)

$487

$385

$406

$1,278

50 Gallon

(natural gas — power vented)

$487

$490

$406

$1,383

75 Gallon

(natural gas)

$552

$470

$487

$1,509

75 Gallon

(natural gas — power vented)

$552

$545

$487

$1,584