Manual J / load-calc software directory

Compare Manual J and ACCA-approved load-calc tools for HVAC contractors. We show published prices when vendors publish them. When they do not, we mark the listing as pricing on request.

Vendor	Billing	Published price	New-owner fit	ACCA listed
Conduit Tech Pricing on request	Subscription (annual contract; monthly billing mentioned on solutions pages)	Not published. Pricing page directs you to request a quote. No public dollar amount on vendor pages retrieved 2026-09-15.	Possible for independents; confirm device requirements and quote	Yes (verify live)
Cool Calc	Per user / month (plus per-project option)	Unlimited Pro $50/user/mo. Also lists $250/user/mo suite plan and $45/project. Retrieved 2026-09-15.	Strong for solo / new owners who want published monthly pricing	Yes (verify live)
Elite Software (Rhvac)	Perpetual desktop and/or annual online subscription	Rhvac 10 desktop $599 permanent. Rhvac Online $239/year (or $159/year if you already have Rhvac 10). Manual J Calculator Online $149/year. Retrieved 2026-09-15.	Strong for buyers who want a published permanent license or low annual online option	Yes (verify live)
Wrightsoft	Annual subscription (USD)	RSU Residential Package $900/year (USA). Canada $925/year; Combined USA & Canada $1,125/year. Retrieved 2026-09-15.	Fit depends on need for full Windows design / permitting package	Yes (verify live)

Conduit Tech

iPad-oriented HVAC load-calc and sales platform listed on ACCA's approved software page. Pricing is not published; you request a quote from the vendor.

Pricing on request

Pricing: Not published. Pricing page directs you to request a quote. No public dollar amount on vendor pages retrieved 2026-09-15.
Billing: Subscription (annual contract; monthly billing mentioned on solutions pages)
Solo fit: Possible for independents; confirm device requirements and quote

Contractors evaluating on-site LiDAR load calcs during sales callsShops that want ACCA Manual J reports as a sales/presentation toolTeams willing to book a demo for pricing

Cool Calc

Web-based Manual J, S, and D design suite with published unlimited subscription pricing and LiDAR scan options.

Pricing: Unlimited Pro $50/user/mo. Also lists $250/user/mo suite plan and $45/project. Retrieved 2026-09-15.
Billing: Per user / month (plus per-project option)
Solo fit: Strong for solo / new owners who want published monthly pricing

Contractors who want a published monthly floor instead of annual desktop licensesShops that prefer browser access across devicesTeams evaluating LiDAR / floor-plan / satellite capture workflows

Elite Software (Rhvac)

ACCA-approved Rhvac residential load, duct, and equipment selection software with published desktop and online prices.

Pricing: Rhvac 10 desktop $599 permanent. Rhvac Online $239/year (or $159/year if you already have Rhvac 10). Manual J Calculator Online $149/year. Retrieved 2026-09-15.
Billing: Perpetual desktop and/or annual online subscription
Solo fit: Strong for buyers who want a published permanent license or low annual online option

Contractors who prefer a one-time desktop license floor ($599)Buyers comparing annual online Manual J options ($149–$239/year)Shops that want Manual J, D, and S in one Rhvac product family

Wrightsoft

Windows-based Right-Suite Universal (RSU) residential package with published yearly subscription pricing covering Manual J/D and related design modules.

Pricing: RSU Residential Package $900/year (USA). Canada $925/year; Combined USA & Canada $1,125/year. Retrieved 2026-09-15.
Billing: Annual subscription (USD)
Solo fit: Fit depends on need for full Windows design / permitting package

Contractors who need a full residential design and permitting package on WindowsShops that want Manual J and Manual D in one Right-Suite Universal packageTeams linking load data into energy / code tools listed by the vendor