# Greenhouse Planner — Heating and ventilation needs

> Heating and ventilation needs (iPhone/iPad app by H3Apps LLC.)

- Source: https://appshunter.io/ios/app/greenhouse-planner/id1434743188 (this page in markdown: same URL + `.md`)
- Developer: [H3Apps LLC](https://appshunter.io/developer/598620927)
- Category: Business, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 18.6 · 2 MB
- Languages: American English
- Released: 2018-09-21
- Data updated: 2026-05-15
- User reviews in markdown: https://appshunter.io/ios/app/greenhouse-planner/id1434743188/reviews.md

## What is Greenhouse Planner?

Finds the optimal ventilation fan rating and heater BTU output requirements for your greenhouse.

Uses standard industry formulas for ventilation and heat loss in calculations.

The dimensions of the greenhouse, cover material types and temperature settings can all be varied to determine how this changes the results. Inputs can be in Feet or Meters, Fahrenheit or Celsius values.

Results can be sent by text or email.

Get ready with the right equipment to insure healthy plants!


## Version history (last 4 releases)

### 1.0.3 — 2025-12-03

Updated to newer iOS version.

### 1.0.2 — 2022-05-28

Updated to iOS 14+

### 1.0.1 — 2019-03-07

Ventilation requirements of greenhouses in winter are generally on the order of two to three air changes per hour.  Added these air exchange rates to the App.

### 1.0 — 2018-09-19

No release notes.

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All apps by H3Apps LLC: https://appshunter.io/developer/598620927

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-15.*