{"version":"1.0","provider_name":"Barrie Home Inspector Tips","provider_url":"https:\/\/napoleon.cc\/tips","title":"Fresh Air Mix Boxes","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"PfZ6JV0IHd\"><a href=\"https:\/\/napoleon.cc\/tips\/fresh-air-mix-boxes\/\">Fresh Air Mix Boxes<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/napoleon.cc\/tips\/fresh-air-mix-boxes\/embed\/#?secret=PfZ6JV0IHd\" width=\"600\" height=\"338\" title=\"&#8220;Fresh Air Mix Boxes&#8221; &#8212; Barrie Home Inspector Tips\" data-secret=\"PfZ6JV0IHd\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/napoleon.cc\/tips\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"Fresh Air Mix Boxes. An interesting way of supplying combustion air is what I call the \u201cPoor Man\u2019s HRV and consists of a couple of 3 or 4 inch vents cut through the basement wall and a small electric baseboard heater installed below. The theory behind this is that the cold air enters the basement, drops down and is heated by the baseboard heater. Functional but highly inefficient."}