HVAC & Ventilation
Condensate Calculator
Hourly condensate yield for five air-system types from real city weather, with reuse and tank-sizing study.
19 tools · 4 disciplines · 1 subscription
The MEP calculations your projects run on — engineered, cited, in minutes.
Turn repetitive MEP calculations into standards-cited, issue-ready DOCX and XLSX reports — without the spreadsheet risk. The flagship HAP-to-FCU workflow runs in seconds.
Windows 10/11 · 2.4 MB · runs locally — project data stays on your machine
New: MEP Automate Launcher, one window that shows all your MEP Automate tools by discipline and opens them. Tick it in the installer.
Sized, checked and cited to
NFPA 92NFPA 101NFPA 2001NFPA 11/16NFPA 58ASHRAE 62.1/62.2ASHRAE FundamentalsBS EN 12056IPC 2021SMACNAIBCBS 7671NECDW/172DEWA
The suite
One subscription. The full suite.
Each one built for a calculation an MEP engineer actually issues — with the standard it is sized to printed on the face of it.
FLAGSHIPHVAC & Ventilation
HAP Extractor, FCU Selection & Helper
Extract a Carrier HAP report, auto-select the fewest best-fit FCUs from your own library, and bulk-edit a live HAP project — one application.
Carrier HAP Systems Design Reports
Watch walkthrough · 5:10
HVAC & Ventilation
Substation Ventilation
DEWA-compliant transformer-room ventilation, forced and natural, duty/standby fans on the IEC preferred-kW ladder.
HVAC & Ventilation
Swimming Pool Load Simulator
Hourly pool heating and cooling loads from real city weather — outdoor and indoor pools, cover schedules, heat-up sizing and heat-pump selection.
HVAC & Ventilation
Fresh Air Calculator
ASHRAE ventilation from space to FAHU: apartments per 62.2, spaces per 62.1, aggregated with a building wizard.
HVAC & Ventilation
Ventilation Energy Consumption
Annual energy and cost of a fresh-air handling unit, hour by hour on real city weather, for five cooling sources.
HVAC & Ventilation
Static Regain Duct Sizer
Static-regain sizing for any tree-shaped network, round or rectangular; flags the governing worst-case path.
The output
The page you stamp. Not only the window that produced it.
Branded DOCX and XLSX from the same engine that ran the calc — five reports, one sample job (Marina Commercial Tower).
Stairwell pressurization report
DOCX · XLSX · Smoke Management · Marina Commercial Tower
Condensate simulation report
DOCX · Condensate Calculator · Marina Commercial Tower
IPC fixture-unit demand
DOCX · XLSX · Water Supply · Marina Commercial Tower
Sump pit sizing
DOCX · XLSX · Drainage · Marina Commercial Tower
Clean agent NFPA 2001 sizing
DOCX · XLSX · Clean Agent · Marina Commercial Tower
Same project, five engines: condensate, IPC water, sump pit, stair pressurization, clean agent.
The flagship · one tool
HAP Extractor, FCU Selection & Helper
Three jobs that normally eat a whole day after a cooling-load run, in one application. Not a code-compliance calculator — a productivity tool for HAP users.
01Extract
Drop a Carrier HAP report. Get a formatted workbook.
Drop a Carrier HAP Systems Design Report (.rtf) and get a formatted Excel workbook. CAV/VAV, terminal units and VRF are auto-detected.
02Select
The fewest best-fit FCUs, from your own library.
Auto-selects the fewest best-fit FCUs from your own editable machine library and publishes a branded equipment schedule.
03Helper
Hundreds of air-system properties, one pass.
Drives a live Carrier HAP 5.2 session by keyboard to bulk-edit air-system properties, then reads the values back to verify every edit landed.
HAP Helper is a module inside HAP Extractor, not a separate application.
Why MEP Automate
01 / SAVE TIME
Minutes instead of spreadsheet hours.
Enter the design basis and the fixtures once. The tool does the sizing pass you would otherwise rebuild by hand in a workbook for every project.
02 / REPRODUCIBLE RESULTS
Engine-calculated, standards-cited, reproducible.
Key design outputs cite the applicable standard, edition, and clause. The exported report carries the reference column with it — methodology, standard, edition and clause, next to the number it produced.
NFPA 92 # 4.4.2.1IBC # 909.20.5NFPA 101 # 7.2.1.4.5
Issued Word report — Marina Commercial Tower, MCT-2026-MEP-001. Stairwell pressurization, NFPA 92.
03 / CONSISTENT OUTCOME
Same input, same answer, every engineer, every time.
Results first, then the input that produced them. One calculation engine instead of a folder of fragile spreadsheets carrying silent edits from project to project.
Tutorials
Three to start with. 19 walkthroughs in total.
Each walkthrough runs a real design case end to end, from inputs to the exported report. Illustrated help ships inside every tool today.
Extract a Carrier HAP report, auto-select the fewest best-fit FCUs from your own library, and bulk-edit a live HAP project — one application.
Full walkthrough
The first electrical tool in the suite — size, check, quick voltage drop, and a full radial network. BS 7671 by default, NEC as the alternate.
Full walkthrough
Four NFPA 92 tools: stair and lift pressurization, atrium smoke control, corridor extract.
Full walkthrough
Who builds it
Hussein Ragab
Chartered mechanical engineer · Dubai
CEngMCIBSEASHRAECHDCFPSPMPLEED AP BD+C
Fourteen years of building-services consulting across the UAE — HVAC, chilled water, smoke management, plumbing, and fire protection. Chartered Engineer (UK Engineering Council), MCIBSE, ASHRAE Certified HVAC Designer. I write the calculators I was tired of rebuilding in Excel, and I use them on live authority submissions including DM, DCD, DEWA, and the Dubai Building Code.
Mission
Turn the calculations MEP engineers repeat on every project into software that is fast, traceable, and issue-ready.
Vision
Every MEP submission defensible to a clause, not to a spreadsheet.
When you write to support, I answer — typically within two business days. Not a bot, not a queue.
Pricing
One plan. Everything in it.
- The full suite
- New tools included
- Standards-edition updates
- Branded DOCX / XLSX reports
- Help and tutorials
- Direct email support
Monthly
$39founding seats
$15/ month
- Today$07-day free trial, card required
- Day 8$15
- Month 2$15
- Month 3$15
- Then$39/monthcancel anytime
BEST VALUE
Annual
$420founding seats
$350/ year
Limited founding seats. No trial: $350 charged at checkout. List price $420/year.
Before you buy: download the installer and open any one tool. Right after checkout you'll enter the Machine code shown in its licence window, so have it ready.
Download for WindowsOne person, up to 2 PCs · licence locked to your Machine codes · cancel anytime · prices in USD; tax included or added depending on your country
Checkout is handled by Paddle.com as Merchant of Record. After payment you download your licence file straight away.
Founding offer — limited seats, until 31 December 2026
Offices and teams — multi-seat licensing
Includes online training sessions for your engineers on how to use the tools.
FAQ
Can I subscribe today?
Yes. List price is $39/month or $420/year. Founding seats are limited and close on 31 December 2026, or sooner once they are taken. They get $15/month for the first 3 months, then $39/month — or $350/year, kept while you stay subscribed. The monthly plan starts with a 7-day free trial. Prices are in US dollars; depending on your country, sales tax or VAT is either included in the price or added at checkout, and the checkout shows the exact amount before you pay.
Windows-only?
Yes: MEP Automate runs on Windows 10/11 (64-bit desktop installers). No macOS or web version.
Work offline?
Yes. Every calculation runs on your PC. The tools need an internet connection the first time they start, and then at least once every 14 days (or after 200 starts without one) to check the date and your licence. In between, they work fully offline.
What does support cover?
Direct email support from the engineer who builds the tools: setup, calculation questions, standards queries and bug reports. Replies from the engineer, not a bot — typically within two business days.
Cancel anytime?
Yes. Cancel whenever you like; access continues to the end of the paid period. No lock-in — your saved session files stay on your machine.
Are updates included?
Yes: every update, standards-edition tracking, and every new tool joins your subscription at no extra cost.
Can I reopen a calculation later?
Reopen any project months later exactly as it was — the same inputs, the same design basis, the same output, ready to re-issue or defend. Project name, reference, client and revision are carried onto every printed page.
Why does Windows warn about the installer?
The installer is code-signed by the publisher, Hussein Ragab. Because the certificate is new, Microsoft SmartScreen may still show a notice until the download builds reputation. The notice names the verified publisher and is not a malware detection. On managed office PCs, ask IT to review and allow the download rather than working around policy.
How do I get access?
First download the Windows 10/11 installer from this site, install at least one tool and open it: its licence window shows your Machine code. Then start the 7-day free trial (or subscribe annually) from the pricing section. Right after checkout you enter that Machine code and download your licence file straight away. Offices and teams: use the contact form for multi-seat licensing.
Founding seats
Try it free for 7 days. Founding seats: $15/month for 3 months, then $39 — or $350/year.
Windows 10/11 wrapper. Pick the tools you need. Nothing charged during the 7-day trial.