FSEC & SRCC Certified · Beta

Design software
built for solar
thermal contractors.

The only design and proposal platform for solar pool heating and domestic hot water. Certified sizing, swim-season charts that close pool deals, demand-and-offset math for DHW, and combo proposals when both go on one roof.

14-day free trial
No credit card required
Built by an active thermal contractor
Pool Heating FSEC
Swim season
9.2 mo
vs 5.8 unheated · Orlando, FL
DHW SRCC
Annual offset
78%
4-person household · 80gal tank
Collectors 2 × 4×10
Demand 62 gal/day
Backup Electric
Sizing engine certified by
FSEC sizing
SRCC-certified collectors
Google Solar API
The problem

PV got every
tool. Thermal got a spreadsheet.

Aurora. Helioscope. OpenSolar. Every PV contractor in the country has industrial-grade design software with shade analysis, irradiance modeling, and one-click proposals.

Solar pool heating and solar hot water contractors? They size on a paper form, build proposals in Word, and explain swim seasons with a marker on a sample board.

SunProjeX is the first piece of software built for the trade — by someone who actually installs in it.

Pool heating sizing
FSEC paper worksheet
DHW load math
Excel from 2008
Swim season charts
Hand drawn on quote
Combo proposals
Two separate documents
All of the above
SunProjeX
One install · Two systems

Pool heating and
solar hot water.
Same software.

Most thermal contractors do both. Most software does neither. SunProjeX runs the math for each system natively, then ties them into a single homeowner proposal when they share a roof.

System 01

Solar Pool Heating

Size the array, model the swim season, show the homeowner exactly how much longer the pool stays comfortable.

  • FSEC-aligned sizing engine: shape factor, condition adjustments, orientation
  • Three-curve swim-season chart: heated, unheated unscreened, unheated screened
  • Smart roof tracing with 90° auto-snap, live edge dimensions and area
  • Drag-drop panel placement respecting 3″ spacing and adjustable AHJ setbacks
  • Obstructions: rectangle, circle, freeform with height capture
System 02

Solar Hot Water

Demand-and-offset math the way SRCC actually intends it. No more guessing at tank size or collector count.

  • Occupants × gpcd demand modeling for any household profile
  • System types: open-loop, drainback, or glycol-closed
  • Any collector + tank pairing (AET + American as one common example)
  • % annual offset and savings homeowners actually understand
  • FSEC / SRCC sizing logic baked into the same project flow

Combo proposals

When pool heat and DHW share the same roof, SunProjeX builds one proposal, one financing scenario, and one install timeline. Close both systems in the same in-home appointment.

See an example
What's inside

Everything a thermal contractor actually needs.

No bloated PV features you'll never touch. Just the tools that close pool heat and hot water deals.

Swim-season charts

Show homeowners exactly when they'll be swimming, month by month, before and after solar.

Demand-and-offset math

SRCC-aligned hot water modeling. Real annual solar fraction, not best-case fantasy numbers.

Satellite + Solar API

Sub-meter Mapbox imagery and Google Solar API for instant roof intelligence: pitch, azimuth, and sun-hours per segment.

Branded proposals

White-labeled PDFs ready for the customer's hands. Your logo, your colors, your numbers. See a sample →

Roof and panel layout

Plumb the array on real roof geometry. Headers, returns, and tilt without back-of-napkin math.

Open panel catalog

HiTec, Heliocol, Aquatherm Ecosun, AET, American water heaters and more, or add your own. Real flow rates, max-per-row, tank ratings.

Combo proposal builder

Pool heat + DHW on one document, one quote, one signature line. Built for the rep in the living room.

Compliance built in

Sizing methodology meets FSEC and SRCC requirements out of the box. No spreadsheets to defend.

How it works

Field to proposal
in under an hour.

From address entry to a branded PDF the homeowner can hold. Built for the way contractors actually work.

01

Enter the address

SunProjeX pulls local irradiance, climate zone, and roof geometry from public data.

02

Configure the system

Pool dimensions, household size, fixture count, backup type. The sizing engine does the rest.

03

Run the design

Collectors, plumbing, controller logic, swim season chart, and offset percentages auto-generate.

04

Print the proposal

Branded PDF with system specs, financing scenarios, and the close. Sign on the spot.

Pricing

Simple pricing
for the trade.

14-day free trial on every plan. No card to start. Cancel anytime.

Solo
For the owner-operator who designs every install.
$99 / month
14-day free trial · No card required
  • 1 user
  • 25 designs / month
  • FSEC / SRCC sizing engine
  • Pool heat, DHW, and combo design
  • Satellite + Solar API roof intelligence
  • Open panel and tank catalog
  • Branded proposal PDFs
  • Site Inspection PDF
  • Email support
Start free trial
Company
For the established contractor scaling across territories.
$399 / month
14-day free trial · No card required
  • Unlimited users
  • Unlimited designs
  • Everything in Crew
  • KPIs by rep, week, and territory
  • Full compliance & audit logs
  • Onboarding & training
  • Dedicated support
Start free trial

Cancel anytime No setup fees Annual billing saves 20%

Talk to us first

Questions before
you sign up?

Whether you're a solar thermal contractor curious about features, want a walkthrough, or need help deciding which tier fits — drop us a line. We answer in hours, not days.

We reply by email within one business day
Live walkthrough available on request
Built by an active thermal contractor who actually answers

We'll get back to you by email within one business day.

"I've been installing solar thermal since 1999. Every tool we have was built for someone else. SunProjeX was built for us."

Ed Sweat · AllSolar Energy · Florida

The first software
built for the trade.

Join the beta. 14-day free trial, no credit card. We'll get you sizing your first system the same day you sign up.