1){ $TstatQ = number_format($TstatNeeded,0) + 1; }else{ $TstatQ = 1; } $TstatPrice = number_format($TstatQ * 188,2); $TstatAst = "*"; $Zones = '*The maximum amount of Amps a single thermostat can support is 16 Amps. Because of the size of your project, your system will pull ' . number_format($AMPS, 2) . ' Amps when using ' . $Volts . ' Volts and will require ' . $TstatQ .' thermostat(s).'; $kilowatts = $TotalWatts/1000; $kwrate = $_POST['kwperhour']; $perhourcost = number_format($kilowatts, 2)*number_format($kwrate, 2); $avgdaycost = $perhourcost*5.5; $CrimperPrice = "90.00"; $Connectors = $BaysNumber*2; $Connectors = $Connectors+5; $ConnectorsPrice = $Connectors*1; $Insulators = $BaysNumber*2; $Insulators = $Insulators+5; $InsulatorsPrice = $Insulators*1; if ($TotalBaysLength <= 256) { if ($voltage == "120V") { $BlackCableQ = 1; $BlackCablePrice = 30; $WhiteCableQ = 1; $WhiteCablePrice = 30; }elseif ($voltage == "240V"){ $BlackCableQ = 1; $BlackCablePrice = 30; $RedCableQ = 1; $RedCablePrice = 30; } }elseif ($TotalBaysLength > 256 and $TotalBaysLength <= 511) { if ($voltage == "120V") { $BlackCableQ = 2; $BlackCablePrice = 50; $WhiteCableQ = 2; $WhiteCablePrice = 50; }elseif ($voltage == "240V") { $BlackCableQ = 2; $BlackCablePrice = 50; $RedCableQ = 2; $RedCablePrice = 50; } }elseif ($TotalBaysLength > 511 and $TotalBaysLength <= 761) { if ($voltage == "120V") { $BlackCableQ = 3; $BlackCablePrice = "75"; $WhiteCableQ = "3"; $WhiteCablePrice = 75; }elseif ($voltage == "240V") { $BlackCableQ = 3; $BlackCablePrice = 75; $RedCableQ = 3; $RedCablePrice = 75; } }elseif ($TotalBaysLength > 761 and $TotalBaysLength <= 1050) { if ($voltage == "120V") { $BlackCableQ = 4; $BlackCablePrice = 100; $WhiteCableQ = 4; $WhiteCablePrice = 100; }elseif ($voltage == "240V") { $BlackCableQ = 4; $BlackCablePrice = 100; $RedCableQ = 4; $RedCablePrice = 100; } } if ($_POST['retroheat'] == '1'){ $GrandTotal = $Bays12Price+$Bays16Price+$Bays24Price+$TstatPrice+$CrimperPrice+$ConnectorsPrice+$InsulatorsPrice+$BlackCablePrice+$WhiteCablePrice+$RedCablePrice; $sHTML = ''; $sHTML = $sHTML . '
'; $sHTML = $sHTML . 'RETROHEAT CALCULATION RESULTS
' . $TotalWatts . ' Watts / ' . $Volts . ' Volts = ' . number_format($AMPS, 2) . ' Amps
Total Bays: ' . $BaysNumber . '
Est. Cost per hour: $ ' . number_format($perhourcost, 2) . ' Est. Cost per day: $ ' . number_format($avgdaycost, 2) . '(Average 5.5 hours per day)
'; $sHTML = $sHTML . '
'; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; //Heating Panels if ($Bays12 == "0"){ }elseif ($Bays12 <> ""){ $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; } if ($Bays16 == "0"){ }elseif ($Bays16 <> ""){ $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; } if ($Bays24 == "0"){ }elseif ($Bays24 <> ""){ $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; } //Thermostat $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; //Connectors $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; //Insulators $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; //Crimp Tool $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; //Cable Black $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; //Cable White if ($voltage == "120V"){ $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . '
Item DescriptionQuantityPrice
'; $sHTML = $sHTML . '13 inch - ' . $Volts . ' V. Heating Panels for 12 inch Joists' . $Bays12 . '$ ' . number_format($Bays12Price, 2) . '
'; $sHTML = $sHTML . '17 inch - ' . $Volts . ' V. Heating Panels for 16 inch Joists' . $Bays16 . '$ ' . number_format($Bays16Price, 2) . '
'; $sHTML = $sHTML . '25 inch - ' . $Volts . ' V. Heating Panels for 24 inch Joists' . $Bays24 . '$ ' . number_format($Bays24Price, 2) . '
'; $sHTML = $sHTML . $TstatAst . 'Programmable Thermostat - 16 Amp GFCI Breaker - 120/240 V.' . $TstatQ . '$ ' . $TstatPrice . '
'; $sHTML = $sHTML . 'Crimp connectors connecting led wires to heating panel bus-bars' . $Connectors . '$ ' . number_format($ConnectorsPrice, 2) . '
'; $sHTML = $sHTML . 'Plastic insulators to enclose connection to heating panel bus-bars' . $Insulators . '$ ' . number_format($InsulatorsPrice, 2) . '
'; $sHTML = $sHTML . 'Tool for crimping connectors to the heating panel bus-bars' . "1" . '$ ' . $CrimperPrice . '
'; $sHTML = $sHTML . 'Electrical wire, UF, 12 ga single conductor (Black) - 50 ft. roll' . $BlackCableQ . '$ ' . number_format($BlackCablePrice, 2) . '
'; $sHTML = $sHTML . 'Electrical wire, UF, 12 ga single conductor (White) - 50 ft. roll' . $WhiteCableQ . '$ ' . number_format($WhiteCablePrice, 2) . '
'; } //Cable Red if ($voltage == "240V"){ $sHTML = $sHTML . ''; $sHTML = $sHTML . 'Electrical wire, UF, 12 ga single conductor (Red) - 50 ft. roll'; $sHTML = $sHTML . '' . $RedCableQ . ''; $sHTML = $sHTML . '$ ' . number_format($RedCablePrice, 2) . ''; $sHTML = $sHTML . ''; } //TOTAL $sHTML = $sHTML . '
'; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . '
TOTAL: $ ' . $GrandTotal . '

'; //ZONES MESSAGE $sHTML = $sHTML . ''; $sHTML = $sHTML . ''; $sHTML = $sHTML . '
' . $Zones . ''; $sHTML = $sHTML . '


'; print $sHTML; $_SESSION['sHTML'] = $sHTML; } } ?>
RetroHeat Pricing & Parts Calculator
Please note: Panels are NOT to be installed under permanent fixtures.
When calculating required measurements, do not calculate areas underneath cabinets, islands, tubs, etc. Visit the Design Criteria and Project Preparation links for more information.


Enter the measurements for the area you need heated.
12" Floor Joist Bays:
Enter the number of 12" Floor Joist Bays:
Combine the length of all your 12" Floor Joist Bays and enter that amount in feet here:
16" Floor Joist Bays:
Enter the number of 16" Floor Joist Bays:
Combine the length of all your 16" Floor Joist Bays and enter that amount in feet here:
24" Floor Joist Bays:
Enter the number of 24" Floor Joist Bays:
Combine the length of all your 24 " Floor Joist Bays and enter that amount in feet here:
 kW/Hour Rate: $0  Select the preferred voltage: