Kopperfield subject lines
114 subject lines averaging 39 characters.
| Picture | Sent (Eastern) | Subject | Characters | Preview text | |
|---|---|---|---|---|---|
| Sep 8, 2026 6:15 AM | Why we use actual device wattages for our load calculator | 57 | Get more accurate results with real-world values | Sep 8, 2026 6:15 AM · 57 characters. Get more accurate results with real-world values | |
| Sep 7, 2026 2:35 PM | Reminder: one day remaining for our flash sale | 46 | Save 20% on Kopperfield tools before it’s too late | Sep 7, 2026 2:35 PM · 46 characters. Save 20% on Kopperfield tools before it’s too late | |
| Sep 4, 2026 8:19 PM | 🎉 Hey, flash sale for one week only | 36 | Get 20% off design tools from Kopperfield | Sep 4, 2026 8:19 PM · 36 characters. Get 20% off design tools from Kopperfield | |
| Sep 3, 2026 11:19 AM | 🎉 Hey, flash sale for one week only | 36 | Get 20% off design tools from Kopperfield | Sep 3, 2026 11:19 AM · 36 characters. Get 20% off design tools from Kopperfield | |
| Sep 1, 2026 2:34 PM | 🎉 Hey, flash sale for one week only | 36 | Get 20% off design tools from Kopperfield | Sep 1, 2026 2:34 PM · 36 characters. Get 20% off design tools from Kopperfield | |
| Sep 1, 2026 6:14 AM | 📓 Field Notes: How Eco Energy Services slashed load calc time by 80% | 69 | We sat down with Conrad from Eco Energy to hear how Kopperfield changed their workflow | Sep 1, 2026 6:14 AM · 69 characters. We sat down with Conrad from Eco Energy to hear how Kopperfield changed their workflow | |
| Aug 28, 2026 8:15 PM | Single line diagrams made simple | 32 | See how Kevin saves time with line diagrams from Kopperfield | Aug 28, 2026 8:15 PM · 32 characters. See how Kevin saves time with line diagrams from Kopperfield | |
| Aug 27, 2026 11:22 AM | Single line diagrams made simple | 32 | See how Kevin saves time with line diagrams from Kopperfield | Aug 27, 2026 11:22 AM · 32 characters. See how Kevin saves time with line diagrams from Kopperfield | |
| Aug 25, 2026 2:35 PM | Single line diagrams made simple | 32 | See how Kevin saves time with line diagrams from Kopperfield | Aug 25, 2026 2:35 PM · 32 characters. See how Kevin saves time with line diagrams from Kopperfield | |
| Aug 24, 2026 6:13 AM | Reminder: one day remaining for our flash sale | 46 | Save 20% on Kopperfield tools before it’s too late | Aug 24, 2026 6:13 AM · 46 characters. Save 20% on Kopperfield tools before it’s too late | |
| Aug 21, 2026 8:14 PM | Create a free account, no credit card needed | 44 | Now you can get started with a free account for load calcs, line diagrams, panel… | Aug 21, 2026 8:14 PM · 44 characters. Now you can get started with a free account for load calcs, line diagrams, panel… | |
| Aug 20, 2026 11:21 AM | Create a free account, no credit card needed | 44 | Now you can get started with a free account for load calcs, line diagrams, panel… | Aug 20, 2026 11:21 AM · 44 characters. Now you can get started with a free account for load calcs, line diagrams, panel… | |
| Aug 18, 2026 2:32 PM | Create a free account, no credit card needed | 44 | Now you can get started with a free account for load calcs, line diagrams, panel… | Aug 18, 2026 2:32 PM · 44 characters. Now you can get started with a free account for load calcs, line diagrams, panel… | |
| Aug 18, 2026 6:12 AM | 🎉 Hey, flash sale for one week only | 36 | Get 20% off design tools from Kopperfield | Aug 18, 2026 6:12 AM · 36 characters. Get 20% off design tools from Kopperfield | |
| Aug 14, 2026 8:13 PM | 📸 Hey, use a photo for faster load calcs | 41 | Subscribe for AI-powered automatic panel photo detection | Aug 14, 2026 8:13 PM · 41 characters. Subscribe for AI-powered automatic panel photo detection | |
| Aug 13, 2026 11:18 AM | 📸 Hey, use a photo for faster load calcs | 41 | Subscribe for AI-powered automatic panel photo detection | Aug 13, 2026 11:18 AM · 41 characters. Subscribe for AI-powered automatic panel photo detection | |
| Aug 11, 2026 2:30 PM | 📸 Hey, use a photo for faster load calcs | 41 | Subscribe for AI-powered automatic panel photo detection | Aug 11, 2026 2:30 PM · 41 characters. Subscribe for AI-powered automatic panel photo detection | |
| Aug 11, 2026 6:11 AM | Single line diagrams made simple | 32 | See how Kevin saves time with line diagrams from Kopperfield | Aug 11, 2026 6:11 AM · 32 characters. See how Kevin saves time with line diagrams from Kopperfield | |
| Aug 7, 2026 8:12 PM | Standard vs. Optional Method — which load calculation method should you use? | 78 | See how Kopperfield’s load calculator can help | Aug 7, 2026 8:12 PM · 78 characters. See how Kopperfield’s load calculator can help | |
| Aug 6, 2026 11:16 AM | Standard vs. Optional Method — which load calculation method should you use? | 78 | See how Kopperfield’s load calculator can help | Aug 6, 2026 11:16 AM · 78 characters. See how Kopperfield’s load calculator can help | |
| Aug 4, 2026 2:29 PM | Standard vs. Optional Method — which load calculation method should you use? | 78 | See how Kopperfield’s load calculator can help | Aug 4, 2026 2:29 PM · 78 characters. See how Kopperfield’s load calculator can help | |
| Aug 4, 2026 6:11 AM | Create a free account, no credit card needed | 44 | Now you can get started with a free account for load calcs, line diagrams, panel… | Aug 4, 2026 6:11 AM · 44 characters. Now you can get started with a free account for load calcs, line diagrams, panel… | |
| Jul 31, 2026 8:10 PM | Prepare permits from your pocket | 32 | Introducing the Kopperfield mobile app for iOS and Android | Jul 31, 2026 8:10 PM · 32 characters. Introducing the Kopperfield mobile app for iOS and Android | |
| Jul 30, 2026 11:09 AM | Prepare permits from your pocket | 32 | Introducing the Kopperfield mobile app for iOS and Android | Jul 30, 2026 11:09 AM · 32 characters. Introducing the Kopperfield mobile app for iOS and Android | |
| Jul 28, 2026 2:27 PM | Prepare permits from your pocket | 32 | Introducing the Kopperfield mobile app for iOS and Android | Jul 28, 2026 2:27 PM · 32 characters. Introducing the Kopperfield mobile app for iOS and Android | |
| Jul 28, 2026 6:11 AM | 📸 Hey, use a photo for faster load calcs | 41 | Subscribe for AI-powered automatic panel photo detection | Jul 28, 2026 6:11 AM · 41 characters. Subscribe for AI-powered automatic panel photo detection | |
| Jul 24, 2026 8:07 PM | 📹 New video: load calc walkthrough with an EV charger | 54 | Follow along as we demonstrate how to generate a load calc using the optional method with… | Jul 24, 2026 8:07 PM · 54 characters. Follow along as we demonstrate how to generate a load calc using the optional method with… | |
| Jul 23, 2026 10:26 AM | 📹 New video: load calc walkthrough with an EV charger | 54 | Follow along as we demonstrate how to generate a load calc using the optional method with… | Jul 23, 2026 10:26 AM · 54 characters. Follow along as we demonstrate how to generate a load calc using the optional method with… | |
| Jul 21, 2026 2:26 PM | 📹 New video: load calc walkthrough with an EV charger | 54 | Follow along as we demonstrate how to generate a load calc using the optional method with… | Jul 21, 2026 2:26 PM · 54 characters. Follow along as we demonstrate how to generate a load calc using the optional method with… | |
| Jul 21, 2026 6:08 AM | Standard vs. Optional Method — which load calculation method should you use? | 78 | See how Kopperfield’s load calculator can help | Jul 21, 2026 6:08 AM · 78 characters. See how Kopperfield’s load calculator can help | |
| Jul 17, 2026 7:54 PM | Design docs that pass inspections | 33 | See what an electrical inspector has to say about our load calculator | Jul 17, 2026 7:54 PM · 33 characters. See what an electrical inspector has to say about our load calculator | |
| Jul 16, 2026 7:53 PM | More design tools, for less | 27 | Plans starting as low as $34.99 per month | Jul 16, 2026 7:53 PM · 27 characters. Plans starting as low as $34.99 per month | |
| Jul 16, 2026 10:13 AM | Design docs that pass inspections | 33 | See what an electrical inspector has to say about our load calculator | Jul 16, 2026 10:13 AM · 33 characters. See what an electrical inspector has to say about our load calculator | |
| Jul 15, 2026 7:52 PM | New! National Electrical Code chatbot | 37 | Try our free NEC chatbot and let us know what you think | Jul 15, 2026 7:52 PM · 37 characters. Try our free NEC chatbot and let us know what you think | |
| Jul 15, 2026 10:12 AM | More design tools, for less | 27 | Plans starting as low as $34.99 per month | Jul 15, 2026 10:12 AM · 27 characters. Plans starting as low as $34.99 per month | |
| Jul 14, 2026 7:51 PM | Save time with panel schedules | 30 | Create free panel schedules and electric panel labels | Jul 14, 2026 7:51 PM · 30 characters. Create free panel schedules and electric panel labels | |
| Jul 14, 2026 2:09 PM | Design docs that pass inspections | 33 | See what an electrical inspector has to say about our load calculator | Jul 14, 2026 2:09 PM · 33 characters. See what an electrical inspector has to say about our load calculator | |
| Jul 14, 2026 10:07 AM | New! National Electrical Code chatbot | 37 | Try our free NEC chatbot and let us know what you think | Jul 14, 2026 10:07 AM · 37 characters. Try our free NEC chatbot and let us know what you think | |
| Jul 14, 2026 6:07 AM | Prepare permits from your pocket | 32 | Introducing the Kopperfield mobile app for iOS and Android | Jul 14, 2026 6:07 AM · 32 characters. Introducing the Kopperfield mobile app for iOS and Android | |
| Jul 13, 2026 7:50 PM | Check out our free single line diagram tool | 43 | Create diagrams in minutes with our pre-built templates and easy drawing tools | Jul 13, 2026 7:50 PM · 43 characters. Create diagrams in minutes with our pre-built templates and easy drawing tools | |
| Jul 13, 2026 2:07 PM | More design tools, for less | 27 | Plans starting as low as $34.99 per month | Jul 13, 2026 2:07 PM · 27 characters. Plans starting as low as $34.99 per month | |
| Jul 13, 2026 10:05 AM | Save time with panel schedules | 30 | Create free panel schedules and electric panel labels | Jul 13, 2026 10:05 AM · 30 characters. Create free panel schedules and electric panel labels | |
| Jul 10, 2026 7:49 PM | Have you seen our automatic panel photo processing? | 51 | Available with our Tools plans starting at $24.99 per month | Jul 10, 2026 7:49 PM · 51 characters. Available with our Tools plans starting at $24.99 per month | |
| Jul 10, 2026 2:06 PM | New! National Electrical Code chatbot | 37 | Try our free NEC chatbot and let us know what you think | Jul 10, 2026 2:06 PM · 37 characters. Try our free NEC chatbot and let us know what you think | |
| Jul 10, 2026 10:00 AM | Check out our free single line diagram tool | 43 | Create diagrams in minutes with our pre-built templates and easy drawing tools | Jul 10, 2026 10:00 AM · 43 characters. Create diagrams in minutes with our pre-built templates and easy drawing tools | |
| Jul 9, 2026 7:48 PM | Try our free load calculator | 28 | Create calculations and get a PDF report in minutes | Jul 9, 2026 7:48 PM · 28 characters. Create calculations and get a PDF report in minutes | |
| Jul 9, 2026 2:04 PM | Save time with panel schedules | 30 | Create free panel schedules and electric panel labels | Jul 9, 2026 2:04 PM · 30 characters. Create free panel schedules and electric panel labels | |
| Jul 9, 2026 9:59 AM | Have you seen our automatic panel photo processing? | 51 | Available with our Tools plans starting at $24.99 per month | Jul 9, 2026 9:59 AM · 51 characters. Available with our Tools plans starting at $24.99 per month | |
| Jul 8, 2026 1:58 PM | Check out our free single line diagram tool | 43 | Create diagrams in minutes with our pre-built templates and easy drawing tools | Jul 8, 2026 1:58 PM · 43 characters. Create diagrams in minutes with our pre-built templates and easy drawing tools | |
| Jul 8, 2026 9:58 AM | Try our free load calculator | 28 | Create calculations and get a PDF report in minutes | Jul 8, 2026 9:58 AM · 28 characters. Create calculations and get a PDF report in minutes |
Based on 114 emails received from Jun 17 to Nov 3, 2026. Times in US Eastern. How we collect