Professional Tools & Calculators
Free online calculators and tools to help you size equipment, estimate requirements, and find the perfect products for your projects
Free online calculators and tools to help you size equipment, estimate requirements, and find the perfect products for your projects
Calculate room-by-room heat loss and determine the exact heating requirements for your space. Perfect for sizing boilers, furnaces, and heating systems.
Size your tankless water heater based on simultaneous fixture usage and temperature requirements. Get accurate GPM and BTU recommendations.
Calculate the proper expansion tank size for boilers, water heaters, and hydronic systems. Ensures proper thermal expansion protection.
Search our display inventory across all branch locations. Find exactly what you need with detailed product information and availability.
Calculate water, energy, and cost savings by switching to WaterSense labeled products. See your environmental impact and annual savings.
Calculate heating and cooling BTU requirements for water and air systems. Essential for sizing boilers, furnaces, and HVAC equipment.
Size your ductless mini split system based on room dimensions, climate, insulation, and usage. Get accurate BTU requirements and unit recommendations.
Calculate proper water pipe sizes based on flow rate and velocity requirements. Supports copper, PEX, CPVC, and steel pipe for residential and commercial applications.
Size HVAC ductwork for optimal airflow and efficiency. Calculate CFM requirements and recommended duct dimensions for round and rectangular ducts.
Size natural gas and propane pipes for safe and code-compliant installations. Calculate proper pipe sizes based on BTU load and pipe run length.
Our calculators and tools are designed by industry professionals to help contractors, installers, and homeowners make informed decisions about their plumbing and HVAC systems.
If you have questions about using our calculators or need assistance with product selection, our expert team is here to help.
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