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Design software
built for solar
thermal contractors.

Solar thermal design and proposal software for contractors who install pool heating and domestic hot water. Size systems, lay out collectors on the roof, model performance, and build customer-ready proposals in one browser workflow.

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14-day free trial
No credit card required
Built by an active thermal contractor
Pool Heating · Example FSEC
Illustrative modeled swim season
9.2 mo
vs 5.8 unheated · Orlando, FL
DHW · Example SRCC
Illustrative modeled annual offset
78%
4-person household · 80gal tank
Collectors 2 × 4×10
Demand 62 gal/day
Backup Electric
Sizing methods and product data
FSEC-informed pool sizing
SRCC-rated collector data
Google Solar API
The problem

PV got every
tool. Thermal got a spreadsheet.

Aurora, HelioScope, and OpenSolar give PV contractors purpose built tools for array design, production modeling, and 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 built around the field and sales workflow of contractors who install solar pool heating and solar hot water.

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.

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

The LeverEdge (Hi-Tec Solar), AET, Aquatherm Industries (EcoSun · SI · Sunlite), Magen ecoEnergy (Heliocol · SunStar · SunValue), Techno-Solis, SunEarth, SunMaxx, Apricus, Heliodyne, Stiebel Eltron, American Water Heaters, Vaughn, Rheem — and any panel or tank you add yourself. 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.

Standards-informed inputs

Use FSEC reference methods and SRCC-rated product data where applicable, with project assumptions visible for contractor review.

How it works

Field to proposal
in one workflow.

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.

Solar thermal resources

Start with the
design question.

Pool heating

How pool surface area, climate, the roof, screens, covers, and collectors affect solar pool heating size.

Hot water

How demand, collector area, storage, system type, backup heat, and climate shape solar hot water sizing.

Explore the learning center

From the trade

"The companies who built solar thermal walked away from it. I'm not waiting on them."

A working Florida dealer's take on what happened to the trade and what's left to rebuild.

Read the full piece on Solar Thermal Revival
Pricing

Simple pricing
for the trade.

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

Choose your billing cycle
Starter
The full engine, capped to a handful of designs a month.
$29 $23.25 / month
$279 billed annually
14-day free trial · No card required
  • 1 user
  • 3 designs / month
  • FSEC-informed sizing + SRCC-rated data
  • Pool heat, DHW, and combo design
  • Satellite + Solar API roof intelligence
  • Roof tracing + panel layout
  • Custom panel catalog
  • Branded proposal PDFs + Site Inspection PDF
  • Email support
Start free trial
Solo
For the owner-operator who designs every install.
$99 $79 / month
$948 billed annually
14-day free trial · No card required
  • 1 user
  • 50 designs / month
  • Everything in Starter, plus:
  • Satellite + Solar API roof intelligence
  • Roof tracing + panel layout
  • Open panel and tank catalog
  • Site Inspection PDF
Start free trial
Company
For the established contractor scaling across territories.
$299 $239 / month
$2,868 billed annually
14-day free trial · No card required
  • Up to 15 users
  • Everything in Crew, plus:
  • KPIs by rep, week, and territory
  • Full compliance & audit logs
  • Onboarding & training
  • Dedicated support
Start free trial
Enterprise
Multi-location operators and dealer networks.
$799 $799 / month
or contact sales for custom
Talk to us first · custom onboarding
  • Everything in Company, plus:
  • Multi-location / multi-territory
  • Full white-label (custom domain)
  • API access
  • Zapier + HubSpot integration
  • Custom integrations
  • Dedicated account manager
Contact sales

Cancel anytime No setup fees Annual billing saves ~20%

Compare

Every feature, every tier.

Feature Starter Solo Crew Company Enterprise
Designs per month350UnlimitedUnlimitedUnlimited
Users11515Unlimited
FSEC-informed sizing + SRCC-rated data✓✓✓✓✓
Branded proposal PDFs✓✓✓✓✓
Satellite + Solar API✓✓✓✓✓
Roof tracing + panel layout✓✓✓✓✓
Custom panel catalog✓✓✓✓✓
Site Inspection PDF✓✓✓✓✓
Appointment book + dispatch——✓✓✓
Customer database——✓✓✓
KPIs by rep——✓✓✓
KPIs by week + territory———✓✓
White-label share links——✓✓✓
Full white-label (custom domain)————✓
Audit logs & compliance———✓✓
Multi-location / multi-territory————✓
API access————✓
Zapier + HubSpot integration————✓
Custom integrations————✓
Partners

Built for the trade.
Backed by the brands that make it.

SunProjeX gives solar thermal manufacturers and distributors a direct place in the contractor design workflow. If you make pool heating panels, hot water collectors, tanks, or controls, your verified product data belongs in the catalog.

Catalog listing

Add your products to the SunProjeX panel and tank catalog so contractors can select them while designing a system. Send us the specifications to begin a data review.

Featured partner

Logo placement, prominent catalog position, co-marketing, and discounted wholesale access for your dealer network.

Channel partner

The full program. Dealer enablement portal, branded training, sales analytics across your network, and dealer locator integration.

Catalog participation begins with reviewed product specifications and clear data provenance.
Manufacturer data sovereignty

Your catalog. Your dealer network. Your call.

List your products on SunProjeX without handing over your dealer roster, sales pipeline, or product roadmap. Section 9 of the Manufacturer Partner Data Protection Terms is backed by product controls for access, audit history, export, and deletion.

§5.2

Hidden by Tenant Choice

Admin visibility starts off. We cannot read your data unless you turn it on. When you do, every read requires a documented business reason and lands in your access log.

§5.3

Audit log built in

Every admin read, every visibility flip, every export request, every deletion action lands in your access log, timestamped and downloadable. Bring it to your compliance team. Bring it to a regulator.

§9

Export and deletion on your timeline

Download every row we hold on you as CSV or JSON across every owned table. Or request deletion: a week to change your mind, then we tombstone the account and erase the data.

These controls are part of the SunProjeX manufacturer data model and partner terms.
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, send us a message.

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

We'll get back to you by email.

Solar thermal software
built for the trade.

Start a 14-day free trial in your browser. No credit card is required.

The contractor ecosystem

Connect the design to the company that sells, installs, and services it.

SunProjeX handles solar thermal design and proposals. The related ProjeX platforms carry the broader contractor operation.

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