ASSE 1016 selector, 120Ā°F FL code checker, ADA shower valves, pressure-balancing vs thermostatic comparison
šæ Valve Selector
š”ļø Anti-Scald Calc
š FL Code
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šæ Shower Valve Recommendation Engine
š Pressure-Balancing vs Thermostatic
Pressure-Balancing Valve (ASSE 1016 Type P)
FL Code MinimumMost CommonSingle Control
Balances hot/cold ratio when pressure changes (toilet flush). Limits temperature swing to Ā±3Ā°F. Max temp set via internal stop. Does NOT hold exact temperature. Required in all FL residential showers since 2006 FBC adoption.
Best for: Standard residential, budget-conscious remodels, most FL homes Cost: Valve $150ā$400; Install $350ā$650 Examples: Moen Posi-Temp, Delta Monitor, Kohler Rite-Temp Limitation: Temp drifts with incoming water supply temperature changes (seasonal FL variation)
Thermostatic Valve (ASSE 1016 Type T)
Precise TempDual ControlPremium
Maintains exact temperature within Ā±1Ā°F regardless of pressure OR supply temp changes. Separate volume and temperature controls. Ideal for multi-spray systems, steam rooms, commercial. Required in FL medical/assisted living facilities.
Best for: Medical facilities, elderly, luxury builds, multi-outlet systems Cost: Valve $400ā$1,500+; Install $600ā$1,200 Examples: Kohler DTV, Moen ioDigital, Hansgrohe iSeries, Symmons Temptrol Advantage: Memory temperature ā resets to same temp every use; water-saving (no wait for warmup)
Combination Thermostatic + Volume Control
Best of BothMulti-OutletFL Medical OK
Thermostatic cartridge + separate diverter/volume valves. Allows multiple outlets (shower, rain head, hand shower, tub spout) at precise temperature. Most commercial and hospitality installs in FL use this configuration.
Best for: Multi-outlet shower systems, hotels, master suite renovations Cost: $600ā$2,500 system; Install $900ā$2,000 Examples: Kohler DTV+ system, Moen U by Moen, Grohe Grohtherm Cube FL Note: Required for 3+ outlets in hospitality settings per FL plumbing guidelines
š”ļø Anti-Scald Temperature Compliance Calculator
Verify FL code compliance and calculate scald risk at your water heater setpoint
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Est. Shower Temp
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Scald Risk
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FL Code Status
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1st Degree Burn
š”ļø Temperature Risk Reference Chart
100Ā°FComfortable bath temp
105Ā°FHot tub maximum (CPSC)
110Ā°FDiscomfort ā prolonged pain
120Ā°FFL code max at fixture ā 5 min burn time
125Ā°F1st degree burn in 2 minutes
130Ā°F1st degree burn in 30 seconds
140Ā°F1st degree burn in 5 seconds
150Ā°F+Instant scalding ā life threat
ā ļø Florida's ambient water temp (72Ā°F+) means tankless WH needs less rise ā but Legionella control still requires 120Ā°F at WH. Solution: ASSE 1016/1070 mixing valve between WH and distribution.
š FL Hot Water Strategy: 120Ā°F Rule
Store / heat at 140Ā°F minimum ā kills Legionella bacteria. Tank WH should be set to 140Ā°F, even if you add a mixing valve downstream (FL DOH recommendation).
Install ASSE 1070 mixing valve at WH ā reduces mixed supply to 120Ā°F before entering distribution system. Required in FL medical/senior facilities. Strongly recommended for all FL homes with children or elderly.
ASSE 1016 shower valve limits to 120Ā°F at fixture ā the internal hot stop prevents the valve from delivering water above the preset maximum. Set during installation, requires tool to adjust.
For vulnerable users: set shower valve stop to 110Ā°F ā pediatricians recommend 110Ā°F max for children under 5. Mobility-impaired users may not be able to react to hot water quickly enough at 120Ā°F.
š FL Shower Valve Code Requirements
Florida Building Code (FBC) adopts ASSE 1016 for all shower and tub/shower combinations. This has been required since the 2004 FBC edition ā any shower built after 2004 must have an ASSE 1016 or equivalent anti-scald valve.
FBC R2708.1 / FPC 424.3 ā Anti-Scald Mandatory ā All shower and tub/shower valves must be ASSE 1016 listed. Applies to new construction AND fixture replacement. Maximum 120Ā°F at shower outlet. No exceptions for owner-occupied single-family in FL.
ASSE 1016 Internal Stop Setting ā The hot stop (limit stop) must be set to prevent outlet above 120Ā°F. Factory-set at 120Ā°F but must be field-verified. Plumber is responsible for setting and documenting during rough-in inspection.
FL Medical/Assisted Living ā ASSE 1070 Required ā AHCA (Agency for Health Care Administration) requires ASSE 1070 point-of-use mixing valves in all patient/resident bathing areas in addition to ASSE 1016 at the fixture. Max 110Ā°F in care settings.
Permit Required for Valve Replacement? ā FL Statute 489.105(3)(m) exempts minor repairs from permit (washer replacement, etc.). However, replacing a valve body or cartridge that changes the anti-scald function IS a plumbing alteration requiring permit in most FL jurisdictions. Check with your building department ā policies vary by county.
ADA Accessible Showers (FL Accessibility Code) ā Roll-in and transfer showers must have ASSE 1016 thermostatic or pressure-balancing valve with hand shower on sliding bar (48" to 72" height). Controls must be operable with closed fist, reachable from outside shower.
FL Short-Term Rental / Airbnb Properties ā DBPR requires anti-scald compliance for vacation rentals. Annual inspection may check shower valve function. Non-compliant valve = potential license suspension. ASSE 1016 must be documented.
Water Pressure Requirement ā ASSE 1016 valves require minimum 20 PSI dynamic pressure to function properly. FL well water systems must have properly sized pressure tank. Low pressure bypasses the anti-scald mechanism on some models.
ā Shower Valve Compliance Checklist
Valve is ASSE 1016 listed (marked on valve body or packaging)
Hot stop set to max 120Ā°F (verify with thermometer)
For medical/elderly: ASSE 1070 mixing valve installed at WH
Permit pulled if replacing valve body (check local jurisdiction)
ADA controls reachable from outside shower (if applicable)
Minimum 20 PSI dynamic water pressure at shower valve
Expansion tank on water heater (if closed system ā FL code)