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Manual D, Manual S, & Manual J Calculations
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Total Savings Blog | Articles and Videos to help your home be more efficient and comfortable year round!
Why HVAC Load Calculations Are Critical This Heating Season
As winter approaches, ensuring your home stays warm and efficient is key. Learn why a precise Manual J HVAC load calculation is essential for proper furnace sizing, lower utility bills, and long-term home comfort.
The Importance of HVAC Load Calculations Before the Cold Season
Summer in Massachusetts: Staying Cool and Making the Most of the Season
Every Massachusetts Home Needs a Different HVAC Design
When homeowners think about heating and cooling, most assume every house follows the same formula. But the truth is every home has its own comfort requirements. A heating and cooling system that works perfectly in one home may not perform the same in another, even if...
Energy Policy Updates
What New House Bills Could Mean for the HVAC Industry?House passes two energy bills, but contractors still need to push for energy choiceThe United States House of Representatives recently passed two energy bills aimed at modernizing the Energy Policy and Conservation...
Manual J Block Load vs. Room by Room Load — What’s the Difference?
When it comes to HVAC load calculations, there are two common approaches: Manual J Block Load and Manual J Room by Room Load. Each method serves a different purpose depending on the needs of the project.First, let’s talk about the Manual J Block Load, also known as...
Paying for Manual J Software? That’s Not Enough Anymore
Are you paying for a Manual J software — but that’s all it does?If so, you could be wasting your money. With today’s evolving building codes, Manual J alone is no longer enough. If your system can’t produce Manual S (and in many cases Manual D), you may be overpaying,...
Is Your HVAC Ready for the Spring Season?
As winter fades and temperatures begin to rise, spring is the perfect time to give your HVAC system the attention it needs. After working hard all winter, your system deserves a seasonal tune-up to ensure it runs efficiently, safely, and reliably through the warmer...
5 Reasons Why a Manual J Load Calculation Matters for Your Home
A Manual J load calculation is the ACCA-approved standard for determining a home’s true heating and cooling needs. Discover the top five reasons why Manual J is essential for efficiency, comfort, and long-term HVAC performance.
AI-Generated HVAC Load Calculations: Accuracy Still Matters
AI-generated HVAC load calculations may offer speed and convenience, but they often rely on assumptions that lead to sizing errors, inefficiencies, and comfort issues. Learn why Total Home Calculations goes beyond AI-only reports to deliver accurate, professionally reviewed HVAC designs you can trust.
Is Your Home Winter-Ready? Why HVAC Load Calculations Matter This Holiday Season
As the holiday season begins, keeping your home warm and comfortable becomes essential. Discover how HVAC load calculations ensure your heating system can handle the winter weather — and your holiday guests!
Is Your Home Following the Sun Orientation or Wasting Energy?
Discover how sun orientation and south-facing windows impact your home’s cooling load, energy efficiency, and indoor temperature. Find out why a Manual J Load Calculation is essential for proper HVAC sizing.
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