Spreadsheets That Break at Scale
We have a different Excel file for every equipment category - humidifiers, rooftop units, VRF sizing. Every update has to be done manually, everywhere.
THE HVAC ENGINEERING PLATFORM
Any HVAC Calculation. One Engineering Platform. Your Brand.
Climahub.ai gives HVAC manufacturers, distributors, and engineering teams a white-label platform to deploy, share, and automate technical calculations - humidifiers, dehumidifiers, UVC disinfection, rooftop units, VRF systems, chillers, hydromodules, and custom modules built to your engineering specification.
No credit card required - Setup in under 10 minutes
Product View: Module Selector
Sidebar module categories
Available modules
- Humidifier
- Dehumidifier
- UVC
- Rooftop
- VRF
- Chiller+FCU
- Hydromodule
- Custom
Report exported - PDF ready in 1.2s
3 users collaborating live.
X engineering projects completed
Y HVAC equipment categories covered
Multi-tenant, region-isolated architecture
Avg. calculation time: minutes, not hours
Sound Familiar?
HVAC engineering teams lose weeks every year to tooling that wasn't built for the full range of equipment they sell. Here's what we hear from engineers and sales teams every day.
Endless Recalculations, Every Quote
Our sales engineers spend 3-4 hours per quote recalculating psychrometric or hydronic conditions by hand. We lose deals because we're too slow.
No Professional Reports to Show Clients
We send clients a PDF screenshot of a spreadsheet. It doesn't look professional, and we can't brand it - for any product line.
Knowledge Locked in One Engineer's Head
One senior engineer wrote all the calculation logic for a specific system. If they leave, that entire product category has no shared calculation tool.
There's a better way.
Up and Running in Three Steps
No IT department needed. No months-long implementation. Your first calculator - for any HVAC equipment category - goes live in a single afternoon.
01
Set Up Your Workspace in Minutes
Create your company account, upload your logo, set brand colors, and configure your product lines - whatever they are. Invite your team and assign roles: admin, engineer, viewer, or client.
Average setup time: 12 minutes
02
Run Calculations. Generate Branded Reports.
Select your module - humidifier, dehumidifier, UVC, rooftop, VRF, chiller/FCU, hydromodule, or a custom module built for your exact equipment. Enter project parameters and get instant, engineering-accurate results. Export branded PDF reports in one click.
PDF reports in 3 seconds
03
Share Access. Collaborate Across Teams.
Invite clients, distributors, or regional partners to your white-label portal. They use your calculators under your brand - not ours. Collaborate on projects with a shared history of every calculation made, across every equipment category you support.
White-label: your brand, not ours
Built for Every HVAC Calculation Your Team Faces
Purpose-built modules for the calculations that matter, with engineering accuracy validated against industry standards - across every equipment category, not just one.
Core
Humidifier Selection
Select optimal humidifier type, capacity, and placement based on psychrometric parameters and room conditions.
Core
Dehumidifier Selection
Size dehumidification equipment based on moisture load, airflow, and target humidity setpoints.
Core
UVC Air Disinfection
Calculate UVC dosage, lamp placement, and airflow exposure time for ASHRAE 241-compliant disinfection systems.
Core
Rooftop Unit Sizing
Size rooftop HVAC units for commercial applications - heating, cooling, ventilation, and economizer cycles.
Core
VRF System Design
Size VRF indoor/outdoor unit combinations, refrigerant piping, and capacity balancing across zones.
Core
Chiller + Fan Coil Sizing
Match chiller capacity to fan coil unit load, water flow rate, and delta-T across hydronic circuits.
Core
Hydromodule Engineering
Design hydronic systems - pump sizing, pipe diameter, pressure drop, and heat exchanger matching.
Custom
Custom Calculator Development
Don't see your calculation type? We formalize bespoke modules to your engineering specification - including bringing in domain-specific engineers when needed - fully integrated into your workspace.
Platform
Project Dashboard
Manage all calculations across projects, clients, and equipment categories in one place - history, versions, sharing, audit trail.
Need a calculation that's not on the list?
We formalize custom HVAC calculators to your exact engineering specification - for any equipment category, bringing in specialized engineers on a project basis when the required expertise isn't already in-house. Most custom modules go live in 2-4 weeks.
How HVAC Teams Use Climahub.ai
Structured around manufacturers, distributors, and engineering teams with clear current capabilities and near-term platform value.
For Manufacturers
What's already built:
- • White-label environment: own domain (company.climahub.ai), logo, brand colors, Climahub never visible to end clients
- • Library of ready-made modules across the full HVAC spectrum, extensible to any new product line
- • ~12-minute company onboarding: logo, brand colors, product line configuration
- • Branded PDF report generation in seconds
- • Superadmin role: full control over products, pricing (price floor/ceiling), regional zones, and partner network
- • Custom Calculator Development - request a bespoke module for a proprietary engineering method, including access to outsourced domain engineers
- • Centralized audit log of all partner and staff actions
Value we're building toward:
- • Launch a new product line on the calculation platform without maintaining an in-house dev team for every category
- • Isolated tenant per brand - no crossover of calculation logic or client data between manufacturers sharing the platform
- • Database-level territorial control of distributor networks - regional exclusivity enforced by the system, not a paper agreement
- • Partner pricing governance via price floor/ceiling with automatic violation control
- • MDF (Market Development Fund) mechanism to incentivize partners with transparent ROI tracking per lead source
- • Centralized calculation-logic updates with no reinstallation required at client or distributor side
For Distributors (including Regional Exclusive Partners)
What's already built:
- • White-label instance within the manufacturer's platform - own subdomain, brand, PDF reports
- • Regional Exclusive Partner role with a locked region_id and rights to manage sub-partners within that territory
- • Team management via Sub-partner Admin, Engineer/Designer, Sales Manager, Read-only Viewer roles
- • Lead management with SLA tracking across stages (new -> assigned -> in progress -> won/lost/frozen)
- • Project dashboard for tracking calculations and clients within the assigned region
Value we're building toward:
- • Legally and technically enforced regional exclusivity - no other partner gets access in a locked territory, enforced at the system level
- • Access to the MDF fund for marketing activity with transparent spend and ROI reporting
- • Independent management of sub-partners and local engineers within the territory, without manufacturer approval for every action
- • Localized version of the calculation tool: language, units, local codes and climate data
- • Consolidation of multiple manufacturer brands into a single distributor dashboard when working across several product lines
- • Transparent SLA discipline on lead handling, reducing losses from local response delays
For Engineering Teams (End Users)
What's already built:
- • Online calculator with engineering parameter input and instant results, including full psychrometric logic
- • Engineer/Designer role - calculates within assigned product lines and tenant, with no access to other tenants' data
- • Team collaboration: shared workspace, calculation history, versioning, role assignment
- • One-click branded PDF export
- • Project sharing with colleagues and clients via email invite inside the white-label portal
Value we're building toward:
- • Replace ad-hoc Excel calculations with a single calculation infrastructure that doesn't care which equipment category is being sized
- • Reduced dependency on one engineer holding all calculation logic personally - knowledge moves into the system, not out the door when they leave
- • Full calculation history and audit trail per project - relevant for ISO 9001 and other quality management standards
- • Access to a growing library of modules - humidifiers to VRF to chillers - without learning a new interface for every category
- • Ability to request a custom calculation module from the manufacturer when no ready-made solution exists yet
- • Professional client-facing reporting - a branded PDF instead of a spreadsheet screenshot
We're onboarding our first cohort of manufacturer and distributor partners. Case studies will be published as projects go live.
Trust Layer
Multi-Tenant, Region-Isolated Architecture
Simple, Transparent Pricing
Start small and scale when you're ready. All plans include core calculations and PDF export.
Starter
$99 / mo$79 / mo
- • Small teams or individual engineers testing the platform across any HVAC calculation category
- • Up to 3 users
- • 2 core modules
- • No
- • Climahub branded
- • 10 active projects
- • No
- • API: No
- • Email support (48h)
Professional
Most Popular
$299 / mo$239 / mo
- • Manufacturers and distributors deploying multi-category calculation tools to sales and engineering teams
- • Up to 25 users
- • All core modules
- • Custom logo and brand colors
- • Fully branded PDF reports
- • Unlimited projects
- • Add-on available
- • API: Yes
- • Email + Chat (4h)
Enterprise
CustomCustom
- • Large manufacturers, multi-brand distributor networks, custom module development across product lines
- • Unlimited users
- • All core modules + custom
- • Full white-label + custom domain
- • Fully branded
- • Unlimited projects
- • Included
- • API: Yes
- • Dedicated CSM + SLA
Why Climahub is an Investment, Not an Expense
- • One avoided calculation error can cost more than one year of Climahub
- • At 3 hours saved per quote, Professional can pay back in week one
- • Branded reports increase trust compared to spreadsheet screenshots
Can I switch plans later?
Yes. You can upgrade or downgrade at any time, changes apply on the next billing cycle.
What counts as a custom calculator?
Any calculation logic outside core modules. We scope, build, and integrate it into your workspace.
Do you offer a free trial?
Yes. All plans start with a 14-day free trial with no credit card required.
Get Started Today
Your HVAC Calculations Deserve Better Than a Spreadsheet - Whatever the Equipment.
Join teams that replaced scattered Excel files across every product category with a unified, branded calculation platform. Start your 14-day free trial - no setup fees, no contracts.