Blog Category: Hvac
Explore all articles and guides related to "Hvac". Find expert tips, cost analysis, and project checklists to help you succeed.
Back to All PostsThe True Cost of a Low SEER AC Unit in 2026
The initial savings on a low SEER air conditioner are often dwarfed by high lifetime energy costs in 2026. Learn the difference between SEER and SEER2.
Insulation R-Values: What They Mean in 2026
Understand 2026 insulation R-values, how they slow heat transfer, and the minimum R-values required by the IECC based on your Climate Zone.
Climate Zones 101: Why Your Location Dictates Your HVAC Size (2026 DOE Zones)
Understanding the 2026 DOE Climate Zone Map is vital for home efficiency. Learn how your zone determines insulation R-values.
The Hidden Costs of Oversized Air Conditioners (And How to Avoid Them) 2026
Is your house cold and clammy? You may have an oversized AC. Learn the hidden costs of oversizing in 2026, from $800/year in wasted energy.
Manual J Explained: What Your HVAC Contractor Should Tell You in 2026
A deep dive into the industry-standard method for HVAC sizing that most homeowners have never heard of. Updated for 2026.
5 HVAC Sizing Mistakes That Cost Homeowners Thousands in 2026
Learn to identify and avoid the most common and costly mistakes contractors make when sizing new air conditioners and furnaces in 2026.
The Manual J Load Calculation: Why It's the HVAC Gold Standard for AC Sizing in 2026
ACCA Manual J is the mandatory gold standard for determining your home's HVAC load. Learn why sizing by square footage is dangerous and the critical inputs required in 2026.
EER vs. SEER: Clarifying the Two Key Efficiency Metrics in 2026
Learn the difference between EER and SEER ratings for air conditioners. Understand why SEER is a seasonal average and EER measures peak performance.
Heat Pump vs. Gas Furnace: Which is Right for Your Climate Zone in 2026?
An analysis of heat pumps and gas furnaces. Learn the pros, cons, and operating costs of each to determine the best heating system for your home's climate.
Ductwork Design (Manual D): The Unseen Key to HVAC Performance
Your HVAC system is only as good as its ductwork. Learn what ACCA Manual D is, why it's critical for airflow, and how improper ducts waste thousands in 2026.
What is AFUE? Understanding Furnace Efficiency Ratings
A complete guide to AFUE (Annual Fuel Utilization Efficiency). Learn what the percentage means, the difference between 80% and 95% furnaces, and how to choose the right one in 2026.
HVAC Sizing Guide 2026: Stop Guessing, Start Calculating
The definitive guide to sizing your air conditioner and furnace in 2026. Learn why the '500 sq ft per ton' rule is obsolete and how Manual J calculations ensure perfect sizing.
