9 Apps in This Bundle



This HVAC app bundle includes 9 HVAC apps essential for field-based technicians and engineers all at 35% off list price.

The following apps are included:

1. HVAC Residential Load Calcs (HVAC cooling and heating load calcs for the iPhone)
2. HVAC Duct Sizer (simple duct sizing calculator)
3. HVAC RefCharge (performs superheat and subcool refrigerant charging calcs for 75+ refrigerants)
4. HVAC Quick Load (performs rule-of-thumb cooling and heating load calcs)
5. HVAC Psychrometric Plus/LT (performs single- and two-state psychrometric calculations)
6. HVAC Pipe Sizer Plus (a simple pipe sizer for steam, liquid, and gas pipe sizing)
7. Steam Tables (performs steam table calculations)
8. HVAC Toolkit: This is a bonus app that includes many of the above apps in just one app. However, it also includes the HVAC Equipment Locator (full version) and PT Chart apps.

All of these apps (except for the HVAC load calc app) are universal apps meaning that they work on both the iPhone and iPad and adjust their screen sizes accordingly.

The nice thing about purchasing this bundle is you will get these apps at a reduced price (35% lower) compared to purchasing them separately. Also, any time we update 1 or more of the apps, you will receive these updates for free.

Ratings and Reviews

Does not work on iPhone 6

Krazy Kakes

The main apps, the res calc and quick load, do not work at all on an iPhone 6s. Very disappointing.


Carmel Software Corporation
162.2 MB
Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2015 Carmel Software Corporation. All Rights Reserved.
App Bundle $49.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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