
HVAC Pipe Sizer Gas Plus is an application designed to allow users to quickly size a simple low (<= 1.5 psi) and/or high (> 1.5 psi) pressure gas piping system by inputting a number of piping and gas property values.

Residential HVAC Load Calculator is an ACCA-approved Manual J8 HVAC Load Calculator native app available for the Apple iPad

The Uniweld SmarTechDigital Manifold App communicates with SmarTech Digital Manifold to clearly display professionally accurate pressure and temperature readings in the palm of hand. Monitor target and actual Superheat and Subcooling calculations in real-time, as pressure and temperature readings fluctuate.

HVAC RefCharge app is a refrigerant charging calculator designed to allow HVAC technicians to perform superheat and subcool refrigerant charge calculations with ease.

HVAC Quick Load app for iPhone and iPad is designed to perform rule-of-thumb HVAC cooling and heating load calculations for many types of commercial, industrial, institutional, and residential buildings.

HVAC Psychrometric Plus application is desinde to allow users to easily perform single-state and mixed-air HVAC psychrometric calculations using iPhone and iPad.

HVAC Pipe Sizer Liquid is an application designed to allow users to quickly size a simple pipe system by inputting a number of piping and liquid properties, including hot and chilled water (hydronic).

iTEC RESNET is an application designed to comply with the data collection and reporting requirements of the RESNET One Point Airtightness Test.

HVAC Residential Load Calcs HD is a HVAC Manual J8 load calculation mobile app for iPad.



Carmel Software offers specialized software solutions focused primarily on the HVAC (Heating, Ventilating, and Air Conditioning) industry. Their products are designed to enhance the efficiency and effectiveness of HVAC system design, analysis, and maintenance. Carmel Software provides a range of tools that cater to both professionals and educational institutions within the HVAC sector. Their software solutions include applications for load calculations, duct sizing, refrigeration, and energy audits, among others. These tools are developed to help users comply with industry standards, optimize system performance, and reduce energy consumption, contributing to more sustainable environmental practices.